Software programmed to interact with humans is hot property in Silicon Valley, with potential benefits for businesses, consumers even the bereaved

Chatbots are the new apps, said Microsofts CEO Satya Nadella earlier this year. He was not the first senior tech exec to make this claim.

Threads are the new apps, suggested Facebooks head of messaging products David Marcus in January, referring to the threads of conversation in apps such as Facebook Messenger and WhatsApp.

Nadella and Marcus see chatbots computer programs that you interact with by chatting, for example in threads in messaging apps as an important new human/machine interface. Both of their companies have launched tools to help developers create these bots, and between April and September, more than 30,000 were made for Facebook Messenger alone.

Chatbots arent a new technology. The shopping and breaking news bots in Messengers ancestors are chatbots such as AI psychotherapist Eliza from the mid-1960s and Parry, a bot mimicking a human with paranoid schizophrenia, in the early 1970s.

(In 1972, they were thrown together for a bot-to-bot conversation, which Parry quickly steered down a rabbit hole of corrupt horse racing gambling.)

Since 1991, the chatbot equivalent of the Olympics has been the annual Loebner prize, which challenges bots to converse with responses indistinguishable from a humans. Questions in 2016 included: What does Brexit mean?; Would you like a cup of tea?; What do you know about the Turing test?; and a neat touch Do you dream of electric sheep?

But the chatbots on Facebook Messenger and other apps such as Kik, Telegram, Slack and WeChat arent dreaming of electric sheep. Rather than trying to pass for human, theyre unashamedly artificial, and focused entirely on providing information and/or completing tasks for the humans they interact with. If they have views on Brexit, theyre not letting on.

Talking to these chatbots works just like messaging a friend, once youve added them as a contact. Kik has its own bot shop to browse bots in categories including entertainment, lifestyle and games, while business messaging app Slack has a brilliant bots list for its corporate users.

Expectations of these bots are high, and immediate. As veteran developer and Twitter hashtag inventor Chris Messina wrote in his blog in January: 2016 will be the year of conversational commerce you and I will be talking to brands and companies over Facebook Messenger, WhatsApp, Telegram, Slack, and elsewhere before years end, and will find it normal.

He added: Im less interested in whether a conversational service is provided by a human, bot, or some combination thereof Over an increasing period of time, computer-driven bots will become more human-feeling, to the point where the user cant detect the difference, and will interact with either human agent or computer bot in roughly the same interaction paradigm.

This vision text chatting to brands and companies as well as to friends and family is whats driving the chatbot excitement in 2016.

Im excited about conversation as an interface, because for certain applications it feels like the most natural way to engage with a product or service, says Danny Freed, founder of a startup called Joy whose chatbot helps people to track their moods.

Chatbot
Chatbot Jarvis, developed by Lawrence Wu, which acts as a reminder service for its users.

It may also be accessible to a wider range of people. Pete Trainor is director of human-centred design at Nexus, a digital agency that created an AI assistant called Luvo for the bank RBS. He is enthusiastic about chatbots reaching people who may struggle with other digital products.

Just in terms of engaging audiences who cant handle complex user experiences, theyre absolutely brilliant, he says. My mum wont use apps or websites, but she does text message and use WhatsApp to keep in touch because its conversational and thus very human by design.

A similar argument is made by NitinBabel, co-founder of Indian startup Niki, whose chatbot can book taxis, pay bills and order takeaway food among other tasks. He points out that in India, less than 2% of its billion-plus mobile users are transacting online, yet there are more than 10 times more users of messaging appsthere.

A similar trend exists globally. Chatbots have the potential to bridge this gap and enable users who are currently on the mobile internet just to converse with their friends and family to start utilising the platform for a much wider range of services, saysBabel.

One of the key services will be customer service. Tony Wright, strategist at marketing and technology agency DigitasLBi, points out that even if chatbots can handle simple interactions between businesses and their customers, they will have an impact. Waiting hours on the end of a line to give your energy supplier a meter reading could one day be as simple as tapping a few numbers into a tab within Facebook Messenger, hesays.

Jo Allison, consumer behavioural analyst at research firm Canvas8, which has published several reports on chatbots, agrees.

The potential chatbots have to improve customer service is exciting because its very real, says Allison, who sees the technology as an alternative to the almost universally unpopular interactive voice response (IVR) technology used by many companies customer service operations now.

Chatbots may be a logical next step, meanwhile, for companies that already have humans talking to customers on social networks such as Twitter from rail companies to travel firms and consumer goods makers but who may struggle to deal with an influx of questions andcomplaints.

Allison cites a recent study suggesting that almost 90% of messages for brands on social networks are ignored, while replies to the other 10% come after an average wait of 10 hours. Consumers expect a reply within four, she says.

Joy,
Joy, which helps people to track their moods.

Chatbots, backed by machine-learning technology, will be able to remember past conversations and learn from new ones, building up a stash of data over time to respond to a greater range of incoming queries.

Technology firm IPsoft has built an AI worker called Amelia that is designed to automate customer services. Enfield council in London has already struck a deal to use her to help residents find information and complete the initial steps in standard applications such as planningpermission.

She determines how to resolve a problem based on knowledge of the topic and process involved, says IPsofts European CEO Frank Lansink. If Amelia cannot answer a question, she will alert a human colleague, observe the following interaction and learn how to respond to comparable questions in the future.

While people involved in developing chatbots stress the positive aspects of this, it does raise two concerns. First: the privacy aspects of collecting, analysing and using all this data. Chatbots will need clear privacy policies just like apps do, but will the chatty mode of interaction distract us fromthat?

A number of existing bots and bot platforms are not designed with user privacy and security in mind, says Alan Duric, CTO of Skype rival Wire. Rather than users having to check to make sure that adequate precautions are inbuilt, security is a requirement that should be considered a mandatory part ofdesign.

Second, theres the impact on the humans currently working in customer service. In the shorter term, as Lansinks comments indicate, those human colleagues will still be essential. Further out, chatbots are part of the wider discussion about how software may displace humans in the 21st-century workplace.

Some companies see chatbots as helping us get more done in our own jobs. Business messaging service Slack, for example, has its built-in Slackbot and a range of bots being developed by third parties.

Bots are becoming part of our everyday working lives. We see bots scheduling meetings, helping salespeople access CRM information, managing to-dos, reporting on key business metrics and more, says Slacks head of developer relations, Amir Shevat.

Theres a lot of focus on consumer bots right now, but bots that solve for work will be where the real success will happen, because theres a clear set of problems to address.

This is a time of experimentation for the technology: many of those 30,000-plus Facebook Messenger chatbots are awkward to interact with, spammy and/or not useful at all. Its hardly surprising at this stage, but it should be a warning against grand claims of a chatbot revolution.

It got really overhyped really quickly, admitted David Marcus last week. This is a long journey, and you have to start somewhere.

Experts agree that an awareness of chatbots weaknesses as well as their strengths is important. Rachel Barton of consulting firm Accenture Strategy, says: Receiving scripted conversations, being directed to self-service channels or automated help can feel frustrating in particular instances when customers need help and support.

Dylan Bourguignon, CEO and founder of insurance startup So-Sure, says: My take on chatbots is always: what do customers want? My answer to that is: a quick, correct and complete answer to their question. Until AI is able to do that, humans are the best respondents.

Pete Trainor says that Nexus spent nearly six months working on the personality of RBSs Luvo assistant before coding any tech, to minimise the risks of frustration on the part of the humans it chats to. I think the developers need to spend a lot more time focusing on the personality and psychology of their bots, he says. We wanted to ensure the profile was right and the language was approachable. Implementation is relatively straightforward: its the words in the chats and the sentiment analysis of the conversations theres where the real magic lives.

Lawrence Wu, developer of a chatbot called Jarvis, which acts as a reminder service for its users, also uses the magic word, but suggests that it comes from the combination of bots and humans behind the scenes. The most exciting thing about chatbots, as a medium, is allowing humans to step in when needed, he says. Chatbots in themselves arent revolutionary weve had phone trees and robotic dialogues for a while but when paired with human intelligence for tasks AI hasnt quite gotten to yet, these bots seem like magic.

Sometimes the combination of humans and bots can be toxic, as Microsoft found out earlier this year when it launched a chatbot called Tay on Twitter. Designed to mimic the linguistic tics of a late teenage girl and learn from the humans it interacted with, Tay was manipulated by mischievous internet users, and managed to praise Hitler, deny the Holocaust and accuse George W Bush of the 9/11 attacks before being taken offline by Microsoft within a day oflaunching.

Your energy companys Facebook Messenger bot is unlikely to be as outrageous, but experts think Tay is a valuable reminder that there is more work to do around AI and chatbots.

AI-driven programs have huge potential so long as they can get better at understanding language contextually, says Jo Allison of Canvas8. And learn to avoid being tricked into promoting genocide.

Other experts warn of the risks of getting carried away with the chatbot hype. Not all services can be shoehorned into a chat-based dialogue, says Tim Rea, CEO of messaging app Palringo, which has a number of bots.

Sometimes a conversation is just not the best interface suited for the task, says Lawrence Wu of Jarvis.

Dont build a chatbot just to follow a trend; build a chatbot if it helps you solve a problem better, or get to market faster, adds Joys Danny Freed.

Developers are enthusiastic about how the current generation of text-based chatbots will evolve. Voice-based technologies such as Apples Siri and Amazons Alexa soon to make its UK debut in the Echo speaker show one path forward.

Right now, the interface for chatbots is text and buttons. Eventually it will be voice, like with Amazon Alexa or Siri, says Syd Lawrence of We Make Awesome Sh, the studio that recently created a Facebook Messenger chatbot for musician Hardwell. It will be like having a virtual PA helping them with all parts of their life.

That said, its important to remember that consumers want less, not more, interaction, says Daniel Hegarty, CEO of Habito, which has just launched a chatbot mortgage adviser in the UK. If Alexa can order my shopping while I shout it out across the kitchen, thats great, but the second it takes longer to say than to type, the utility is destroyed.

Tony Wright thinks that chatbots will also appear in digital services beyond messaging apps. It could be interesting to see how chatbots might be built into the likes of Netflix and Spotify, he says, suggesting that bots could build on the current recommendation features these services have.

You might want to quickly establish who directed something or what else a particular actors been in, he says, before delivering a warning that chatbots must not be gimmicks.

The likelihood of a chatbot becoming popular depends on how entertaining or useful it is. Does it really serve a purpose or enhance someones experience? says Wright, before making a comparison that may give Microsofts Satya Nadella pause for thought.

Theres a reason why the personified paperclip in the corner of Microsoft Office isnt around anymore.

Our pick of the chatbots

XiaoIce

Tay may have been led astray by humans (see main article), but Microsoft has another chatbot that has been less problematic. XiaoIce has been living on Chinese messaging app WeChat since 2015, and has had more than 10bn conversations with people since.

Fitmeal

Millions of people are already tracking their calorie intake using smartphone apps. Fitmeal is a chatbot that turns this into a conversation, prompting you to tell it what youve eaten and drunk, calculating the calories, and reminding you to check in.

DoNotPay

The self-described worlds first robot lawyer was created by a 19-year-old student to automate the process of appealing against parking tickets, winning more than 160,000 cases since its launch last year. He has since expanded toflight-delay compensation.

Eternime:
Eternime: live on in chatbot form

Eternime

This startup wants you to live for ever. Or, at least, live on after your death in chatbot form. It collects your thoughts, stories and memories, curates them and creates an intelligent avatar that looks like you to interact with your descendants.

Hardwell

Dance-music star Hardwells chatbot is a cut above the marketing-focused herd. Its as much about fans chatting to him, and voting on their favourite tracks for his podcast as promotion for his music. Two-way interaction.

Niki

Indian startup Niki launched in 2015, before the current wave of chatbot hype. Its an all-purpose helper, booking cabs, paying bills, recharging phone credit and even ordering takeaway from Burger King for its growing number of users.

Joy

Messaging apps and their notifications could be seen as a source of stress in our daily lives. Joy wants to have a more positive effect, tracking mental health by asking you once a day how you are and analysing the results, as well as offering stress tips.

Jarvis

Chatbots could be very useful at making up for the flaws in human memory. With Jarvis, for example: you can tell him to remind you to go to the gym, take the bins out or book tickets through Facebook Messenger, and get pinged at the appropriate time with a reminder.

Habito

Launched earlier this month, Habito is described as an artificially intelligent digital mortgage adviser. It uses multiple-choice questions to gauge your needs, and then scans hundreds of mortgage products to suggest the ones that might suit you without a hard sell to choose one.

Tina
Tina the T-Rex: helps children with all things dinosaur.

Tina the T-Rex

Tina is the work of National Geographic: a Facebook Messenger bot pretending to be a Tyrannosaurus rex that children can ask questions about all things dinosaur. Its an early example of a chatbot interface used for primary-level education.

Acebot

Acebot is one of a growing number of chatbots on the Slack messaging service, for workplaces. It will manage your expenses, keep track of your to-do list, quickly poll your colleagues and handle a range of other digital office tasks.

Massively

Massively is one of the most interesting attempts to turn chatbots into interactive fiction. Its tech delivers stories through text conversations with their characters, both in its own app and in messaging apps such as Kik.

Read more: https://www.theguardian.com/technology/2016/sep/18/chatbots-talk-town-interact-humans-technology-silicon-valley

Image copyright Thinkstock
Image caption Many of the UK’s most promising tech firms have been bought by bigger, overseas firms

When it comes to tech, there is no lack of ideas or talent in the UK.

But there is, nonetheless, an ever-growing list of promising companies that sell out or simply fail, rather than growing into British titans that could rival the likes of Microsoft, Apple, Google, IBM, Intel, Oracle and Facebook.

Below are some notable examples:


Sinclair Research


Image caption Sinclair Research sold more than 5 million ZX Spectrums over eight years

There was a time in the 1980s when video gamers and teenage coders across the UK were more likely to be hunched over one of Sir Clive Sinclair’s computers than an American or Asian-made alternative.

Sinclair Research may have only made its ZX Spectrums for domestic sale, but it licensed Timex to make clones that were sold elsewhere in Europe, the US and South America. Dozens of unofficial versions were a hit in the Soviet Union too, proving their appeal, if not a source of income.

But the firm got unstuck when it tried to enter the business market. Its Sinclair QL was designed to outperform IBM’s PCs, but its tape-based Microdrive storage was unreliable and the British company did not offer the kind of telephone support the corporate sector required.

Media captionWATCH: Sir Clive Sinclair discusses his role in computing’s past and future

“Their computer designs were abominable by our standards,” Sir Clive later told the BBC.

“But because… IBM had such a powerful position, I don’t think we could have challenged it.”

After the C5 electric vehicle also failed to catch on, a cash-strapped Sir Clive sold his firm’s brand and assets in 1986 to Amstrad, another domestic computer-maker.

Image copyright PA
Image caption Sir Clive sold the rights to his computers to Alan Sugar’s Amstrad

Amstrad later faced troubles with computer storage of its own and eventually switched focus to TV set-top boxes before selling out to BSkyB.


Friends Reunited

Image copyright Friends Reunited
Image caption Friends Reunited led to marriages – and divorces

Years before Facebook was founded, let alone open to the public, a couple from Hertfordshire and one of their friends, created a social network that attracted millions of users in the UK, Australia, South Africa and beyond.

Friends Reunited connected members with their former classmates by getting them to share the names of their old schools and the year they had left.

Over time, the theme was expanded to cover places of work, sports teams and neighbourhoods where users had lived. Spin-off sites were also created to offer online dating, job searches, message boards and ways for users to trace their family trees.

When ITV paid 175m to buy the operation in 2005, it expected to continue its red hot growth.

Image copyright ITV
Image caption By the time ITV made Friends Reunited free to use, many of its members had gone elsewhere

But the broadcaster made the mistake of continuing to charge users to contact each other, rather than relying on ad revenue alone, for too long.

That allowed Facebook, MySpace and Bebo to take the lead.

ITV sold the business for just 25m in 2009. Although it limped on under other UK owners until earlier this year, it never regained its momentum.


Lastfm.com (2002-2007)

Image copyright Last.fm
Image caption Last.fm offered users a free way to get a personalised online radio station

Last.fm began its life as an internet radio station and an associated website where users listed the tracks they liked to meet others with similar tastes.

But it only really took off after it merged with Audioscrobbler, a plug-in that automatically logged songs that its users had listened to on their computer and MP3 player.

This made it possible to build up a deeper picture of its users’ habits, which in turn helped the service make song recommendations, and then later suggest nearby concerts and music videos too.

By 2007, the service had attracted 15 million users. However, rather than stay independent, its founders opted to sell out to the US media group CBS for $280m (212m).

Image copyright Last.fm
Image caption The Last.fm Scrobbler tool automatically notified the service every time the user listened to a song

They acknowledged that they had struggled to find a way to be profitable in light of the royalty and copyright fees the music industry was demanding, and said that teaming up with the US broadcaster gave them greater negotiating clout.

However, the service continued to rack up losses.

A subscription-based music streaming app was a flop, and these days Last.fm is a relatively minor player. It still recommends music but relies on YouTube, Spotify and other third-party services to provide it.


Autonomy


Image caption Mike Lynch and HP are still fighting a legal battle over the takeover of Autonomy

Silicon Valley might have Google, but for a time Autonomy was the UK’s most highly regarded search giant.

The firm was founded in Cambridge in 1996 and developed software that allowed its clients to hunt through “unstructured data” – emails, videos, social network posts, phone calls, images and other information recorded in apps – that was not kept in neat databases.

The service proved popular with a wide range of organisations, which used it to carry out legal checks, create archives and focus their marketing.

In 2011, Autonomy proved its data-analysis techniques had further potential when it developed an augmented reality tool that allowed smartphones to superimpose graphics over real-world views.

Image copyright Autonomy
Image caption Autonomy’s augmented reality app showed videos on an iPhone when it was held in front of a relevant poster

Hollywood director JJ Abrams was among the first to use it within an app that promoted his film Super 8, and others followed.

The same year, Autonomy’s chief executive, Mike Lynch, agreed to sell the business to HP for just over 7bn. And that’s where things got complicated.

Thirteen months after the takeover was completed, HP claimed Mr Lynch had misrepresented his company’s financial position and wrote down most of its value.

The two sides are now suing each other in a case that is likely to drag on for years.

Image copyright Getty Images
Image caption HP’s Meg Whitman: Her firm and Autonomy are suing each other

In a final twist, HP has agreed to sell Autonomy and some of its other operations to Micro Focus, an English software developer, meaning what is left of the business will soon be controlled again from UK shores.


ARM Holdings

Image copyright Apple
Image caption Apple took a stake in ARM Holdings to secure a chip for its Newton

Until very recently, ARM Holdings was the flag-waver for the UK’s tech scene.

The computer chip designer was created in Cambridge in 1990 as a joint venture between Acorn Computers and Apple.

The US firm wanted a processor to power its first hand-held device, the Newton MessagePad, but later sold its stake after Steve Jobs returned and ditched the product.

That didn’t end the relationship between the two companies though, as ARM’s designs were used in processors that powered first the iPod, then the iPhone and iPad.

Most other smartphones are also dependent on ARM’s chip creations, in addition to a wide assortment of other technology including smart TVs, cars, fitness trackers, smartwatches and drones.

Image copyright ARM
Image caption ARM does not build chips itself but licenses its designs to others

Many people thought ARM might remain independent as it suited device-makers not to have the firm owned by one of their competitors.

But in July, Japan’s Softbank agreed to pay 24bn for it.

ARM’s management suggested the move would help it “move faster in creating new technologies”.

But its co-founder Hermann Hauser has been critical, saying that ARM could have grown “even faster” if it had stayed solo.


Swiftkey

Image copyright Swiftkey
Image caption Swiftkey anticipates words to prevent users having to enter letters individually

The UK is famed for its expertise in artificial intelligence.

But several of the sector’s start-ups – including DeepMind, Magic Pony and VocalIQ – only became known to the wider public once they had fallen into Silicon Valley hands.

Swiftkey was different because it actually brought popular products to market before being taken over.

The London-based firm made a keyboard app for Android and iOS handsets.

The software predicts what its users want to write – including emojis – after they have only entered a few keystrokes.

Over time, its suggestions get more accurate as it studies their habits, and if allowed to review their social network posts, it gets better still.

Swiftkey scored a publicity coup when its tech was adapted to help Prof Stephen Hawking type twice as fast as he could before.

Image copyright Getty Images
Image caption Prof Hawking uses a version of Swiftkey’s technology

And in 2014, it decided to accelerate its growth further by making its app free to use, only charging consumers if they wanted to change the keyboard’s design and colour.

The tactic worked. By the end of 2015, Swiftkey had been installed on about 300 million devices.

But it also caused its losses to grow.

In February this year, the business was sold for a reported 250m to a deep-pocketed buyer.

Image copyright PA
Image caption Swiftkeys’s founders, Jon Reynolds and Ben Medlock, are now multimillionaires

“We believe joining Microsoft is the right next stage in our journey,” its co-founders blogged.

Maybe.

But it also highlights how UK start-ups often feel pressured to sell once their early-stage funding starts to run out.

Read more: http://www.bbc.co.uk/news/technology-37373937

Inexpensive over-the-counter product could help millions of people avoid worst health effects of breathing toxic air, say scientists

An inhaler that protects the lungs against air pollution has been developed by scientists and could help the many millions of people affected by toxic air to avoid its worst effects.

The inhaler delivers a molecule, first found in bacteria in the Egyptian desert, which stabilises water on the surface of the lung cells to form a protective layer. It is expected to be available as an inexpensive, over-the-counter product.

Outdoor air pollution is a global health crisis that kills over 3 million people a year and it has long been linked to lung and heart disease and strokes. But research is also uncovering new impacts on health, including degenerative brain diseases such as Alzheimers, mental illness and, this week, diabetes.

The impact of air pollution costs $5tn a year, according to a World Bank report published last week. In the UK, at least 40,000 people a year die prematurely from air pollution, with a cross-party committee of MPs calling it a public health emergency.

But the governments plans to tackle the issue were heavily criticised this week, just as alerts were issued for extreme air pollution across much of northern England. A day later, it was announced that more ambitious plans for London from Mayor Sadiq Khan were overwhelmingly backed by the public.

Vehicles are a key contributor to air pollution but, a year after the VW emissions scandal broke, most new diesel cars still emit far more toxic nitrogen oxides on the road than the official lab-based limit.

Action to clean up air is urgently needed across the world, but cutting emissions for vehicles and other sources will take years, meaning ways to reduce the harm in the meantime could be vital. The new inhaler has been developed by German medical devices company Bitop and is based on a molecule called ectoine, discovered in the 1980s in a desert bacterium which uses the compound to conserve water in 60C heat.

It is quite an inert molecule that does one main thing, which is bind water, which stabilises cell membrane tissues against physical or chemical damage, said Dr Andreas Bilstein, at Bitop. It supports the natural barrier.

When inhaled, this helps prevent the damage caused by air pollution particles that can lead to asthma, chronic obstructive pulmonary disease (COPD) and lung cancer, Bilstein said: Damage cannot occur as strongly and there is less inflammatory response, and so disease progression is reduced. The perfect situation is that the patient inhales in the morning and evening at home.

The inhaler has been tested in three small groups of patients particularly at risk from air pollution, due to asthma, COPD and bronchitis, with the positive results due to be published soon, Bilstein said.

Ectoine does not interact with cell receptors, so it is classed as a medical device rather than a drug. This means large clinical trials are not required for official approval and the inhaler could be on sale soon, at an estimated cost of 17 a month, after Bitop selects a marketing partner. A version of the product for use in nebulisers will be available this year in Germany and Poland, while an ectoine-based nasal spray for allergy relief is already available.

Bilstein said the inhaler could be useful around the world, as particulate air pollution is not just a European problem: Especially in Asia China in particular the demand for such a product is even higher. I was in New York last week, and the air was also not very clean.

The protective effect of ectoine was discovered by Prof Jean Krutmann and colleagues at the Leibniz Research Institute for Environmental Medicine, while investigating whether the molecule could protect skin against sun damage. Bitop funded a series of studies, now published in prominent scientific journals.

The point that it can prevent the lung inflammation induced by ultrafine particles is established there is no more doubt, Krutmann said. Antioxidants can also provide some protection but there has been controversy over the effectiveness of such food supplements, he said: Personally, I think it is much better to eat lots of vegetables and fruit rather than taking any supplements.

Dr Richard Russell, a consultant respiratory physician in the NHS and medical advisor to the British Lung Foundation, who was not involved in the research, said the inhaler was both credible and promising: Ectoine is a beautifully elegant molecule and it clearly works by helping water to stabilise, giving you a film of water in times of stress.

The work that has been published thus far, in credible, internationally recognised journals, show that this stuff has positive properties, protecting against triggered inflammation, he told the Guardian. Russell, who also lectures at Imperial College and Oxford University, said it might also be useful for the treatment of asthma, COPD and other lung diseases, not only prevention. It could potentially do so much more. It is actually quite exciting and there is clearly a lot more to come from this story.

Krutmann said slashing air pollution remained paramount. It is very nice to be able to protect people against the detrimental effects, but this should not be used as an argument that we can now stop working on reducing particulate [air pollution]. The best thing is that we have clean air because then we dont need any prophylactic treatment. But on the other hand we have to be realistic and in many countries you cannot just switch traffic overnight to electric cars and do other drastic things.

It will take many more years, especially in countries like China, and I think there is an ethical need to provide something to the general population to protect them, he said.

Read more: https://www.theguardian.com/environment/2016/sep/16/new-inhaler-protects-lungs-against-effects-of-air-pollution