Click visits the Hay Festival and chats to some of the biggest names in technology. Plus a look at how social media is being used in the general election.
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Now I BBC News, it is time for Click.
This week: Swaying votes on Facebook.
It's geek versus geek as Spen meets Fry.
And lots of people shout in a big tent.
Summer is on the way and, well, it wouldn't be a British summer
without a visit to a good old fashioned festival.
Known as the Town of Books, Hay-on-Wye, in Wales,
It's a literary Mecca, an annual gathering of artists,
authors, Daleks and, yep, even Royals.
It's even been called the Woodstock of the Mind by none other
than former US President Bill Clinton.
This year it's the 30th Hay Festival and the line-up is pretty stellar.
Well, for the second year in a row, we've been invited to share some
of our favourite experiences and show off some really good tech,
all in front of a real, live audience of actual people.
A packed tent waited, all that we had to do was wow them!
We have robots falling over, experiments in haptic feedback
and demos in binaural sound, but that was nothing
compared to the climax - a Click created wavy,
shouty game built using artificial intelligence.
In the meantime, it can't have have escaped your attention that around
the UK things are getting a touch political.
As the general election looms, those politicians are using increasingly
sophisticated techniques in order to learn more about us.
The advertising reach of Facebook has long been an open secret,
but now it's something the political parties are getting in on too.
In fact, both the Trump campaign and the Leave.EU groups credited
Facebook as being a vital part of their electioneering.
We know that the personal details that you give to social networks
allow them to send you relevant, targeted content, and it goes
much deeper than just your basic demographics.
There are now data analytics companies claiming to be able
to micro-target and micro-tweak messages for individual readers,
If you know the personality of the people you're targeting,
you can nuance your messaging to resonate more effectively
What's also emerging is that political parties have been
using this data to reach potential voters, on a very granular level.
So who is being targeted on Facebook and how?
Well, until now, there's been nothing around to analyse any
of this, but the snap general election galvanised
Louis Knight-Webb and Sam Jeffers to develop Who Targets Me,
a plug-in to tell each of us how we're being targeted.
When you install the plug-in for the first time,
it asks for your age, your gender and your location,
and then it starts scouring your Facebook feed looking for adverts
So once you've installed the plug-in, it works
in the background to extract the whole advert that
So it pulls out the headline, the subtitle, any related videos,
We also get the reaction - so how many likes, how many
comments, how many shares - so we can see which messages
Are they particularly clandestine messages,
are they slightly subversive, are they even fake news?
But how do data companies get the information in the first place?
A lot of the quizzes you fill out on Facebook or,
you know, you open a survey, it asks your Facebook
Sometimes you'll notice that there's a lot of permissions attached
and as soon as you click yes, all of your data is mined,
and it's then sold on to data brokers who then, eventually,
sell it to the political parties for use in their campaigns.
Although Facebook says it doesn't sell our information on,
data brokers can overlay any details they mine from the site with other
datasets that they have on people based on their email addresses.
The next step after that of course is to find similar users that
are using Facebook and then target adverts, from that advertiser
that supplied the email addresses, to those users.
There are just some people that you don't find on Twitter.
The very nature of the fact that I can't see your adverts,
you can't see my adverts, means that this approach had to be
It's a first of its kind anywhere in the world on this scale,
giving us citizens some transparency into what we're being shown,
Do you think that people wouldn't know that certain things are advert
A lot of the time people are scrolling through Facebook
and the adverts fit into this weird intersection of friend
It's quite easy to miss the adverts on Facebook.
So far, Who Targets Me has some 6,700 users
in 620 constituencies, and it's rising as
On the down side, it's only as good as the data it's
managed to crowd-source, so it isn't necessarily
representative, and it also doesn't work with mobile Facebook,
So we're seeing a mixture of two things.
We're seeing, firstly, A/B testing, which is where I try out
two different messages with the same group.
I see which one gets the best reaction and then
We're also seeing targeting, which is where I pick a particular
demographic of people, and then I send a message
So, for example, it might be young people targeted
The data from Who Targets Me is also being poured over by analysts
One aspect of their research is collecting dark posts,
ads which are here one day and gone the next.
It gives us the ability to create a respository of those dark posts.
So if promises are being made on Facebook, in ads which will
disappear the day after you use them, we should be able to go back
to those after the election, look at them, evaluate them
and maybe discuss them in the cold light of day.
And the irony is that, as we demand more transparency
from public bodies, the whole basis of political propaganda
could be on the brink of a revolutionary change.
What's interesting, I think, about the new environment
is the potential for using paid advertising and other techniques
to create individual propaganda bubbles around individual voters.
And that's not about controlling the market as a whole,
but it's about using smart targeted which, in a sense, creates such
a compelling and overarching information environment
for individual people that that in some ways constrains what they do
I think that's why some academic commentators and others
are beginning to think some of this is a bit spooky.
But politicians aren't the only ones with Facebook on their minds.
The social network was one of many topics on the very large brain
of national treasure and tech geek Stephen Fry.
I met up with him after he gave a lecture at the Hay Festival
highlighting how he thinks the world is being changed by social
The very current conversation is whether Facebook and platforms
like them should actually be considered publishers?
Should they take responsibility for what ends up on the site?
They are aware there is a problem, a serious problem.
If 80%, some people have said, is the...
You know, in proportion of people who get their news from Facebook
rather than from mainstream media, then surely it is incumbent
upon someone who is providing 80% of their news sources to make sure
that those news sources are not deflamatory,
blatant lies, propaganda, the wrong kind of,
I would posit there that a publisher is responsible for all the people
They are employed by that publisher and Facebook is clearly not that.
So do we need a third definition, a third thing?
I think there is a medium sort of definition that it's not
beyond the wit of lawyers of the right kind to find that.
Everyone knows you are a famous early adopter.
You seem to try everything that comes out?
Yeah, I'm perpetually driven by curiosity.
It may even be a kind of addictive greed, which is a sort of rather
graver example of the consumer greed that we all share, really.
Maybe I'm just more of a jackdaw, who likes shiny things and I just...
I still love the, you know, the first kind of...
I get short of breath and I pant slightly.
Your presentation was a warning that people should prepare
for the changes that are coming, for example, artificial
I said that it was a sort of transformation of
You know, it's an obsolescence of certain types of job,
but that doesn't mean forced redundancy of millions of workers.
I mentioned one of the pleasing things about AI and robotics,
and that is what's known as Moravec's paradox,
that what we're incredibly bad at, as individuals, machines tend to be
Complicated sums, rapid and incredible access of memory
from a database of a kind that we could never do,
sorting and swapping of information and cataloguing
But things we can do without even thinking,
like walk across the room or pick up a glass and have a sip of water,
But that's fine, because we don't want them to do that for us.
Where it gets difficult is in medium sort of service jobs, I think.
Well, you could go the etymological route, and you could say
Legere is read and inter, interleg, and that's pretty good, actually,
Just being able to see connections in things and people are talking
about the moment that we arrive at AGI, artificial general
intelligence, and that's when the various types of pattern
recognition, you know, numbers, data, you know,
certain faces and things like that, they all come together
so that they can be intelligent across these different things.
If you've got an artificial intelligence that's good at that
and another one that's good at that and another one that's good at that
and you get enough of them, and then you put something on top
that goes, "Oh, you want to know about a language problem,
You want to know about walking and recognising objects,
Surely, just a collection of specialists of intelligences
under one umbrella is a generals intelligence.
It doesn't have to be a breakthrough, it just has to be
I think that's very likely to be the way it goes.
Part of our intelligence, a huge part, is our emotional intelligence.
Einstein would say he did say the same thing.
It's not just the cerebral power, it is something to do
with our blends of fury, inquisitive desire,
These are very, very much more primal and much harder
to reduce to a table of calculations and memories.
But maybe you give it something else, some other kind
It's reward is similar to our reward system
It's tryptophan and serotonin and endorphins of various kinds that
reward us and then we have a pain system to deter us,
and there's nothing to stop us giving that to a machine.
Stephen, thank you so much for your time.
Thank you for having us at your place.
It was the week where Android creator Andy Rubin
Co-founder of Google Larry Page had a couple of novices
take his Kitty Hawk Flyer for a spin.
And Intel popped swing-sensing chips into bats for the ICC Champions Cup.
Now, whenever you go into a church you expect to see a man
of God or a woman of God, but not a robot of God!
A Protestant church in Germany has unveiled a robotic priest,
called BlessU-2, to mark 500 years since the reaffirmation.
The machine delivers various blessings in eight languages.
Researchers at MIT have come up with a unique way to let
the visually impaired know more about what's around them.
A 3D camera recognises stuff and feeds that detail back
using vibrations through a belt and an electronic Braille interface.
Microsoft showed off a range of mixed reality headsets,
they're designed to blend the real world and virtual content into one
where physical and digitally created objects co-exist and interact.
Google Maps now doesn't just take you to your destination,
Click on an art museum and take a peek around with each artwork
displayed with the gallery's notations, plus extra
Now, as you've just been hearing, Microsoft may be leading the way
in mixed or augmented reality, but they're not the only company
this's trying to make you see things that aren't really there.
I'm at the Augmented World Expo which has doubled in size since last
year, a sign of the excitement this relatively new technology
Now you have a hologram in front you.
When you open your fist, you release it and then you can look at it.
Now you can stick your hand beside it.
Place it anywhere in space, anywhere you want.
I'm going to put it on top of Cody's head, behind the camera.
I feel like this is going to strain my eyes if I use it for any
Funny that you say that, we have a team of neuroscientists
on staff who actually do user testing with us.
We're confirming with our neuroscientists team that it does
not cause any eye strain or neck pain or anything when
The problem with all of these devices is that most of them require
expensive new gadgets, like these $799 glasses or big bulky
devices that soon become uncomfortable to wear.
But I did find one idea that I think could genuinely make many
Project Chalk is an app that uses augmented reality to let
you remotely help someone use a gadget or fix an object.
So next time your parents ring, you can show them what to do,
You can see the clever thing about this app is that,
even if I move around the machine, we still have the instructions
overlaid in the same place which means it can be much more
precise than if it was just drawn on a normal screen.
Project Chalk's designed to work on all types of devices -
phones, tablets and what we call digital eyewear, which you can also
So this will be available on a free basis which means anyone will be
able to start by downloading it from the app store and using
But once people have to pay, do you think they'll go back to just
using Skype or just talking on the phone to get
Now last week, the world's best player in the Chinese board game go
was pretty soundly beaten by Google's artificial
For those following the rapid development of AI, the result
20 years ago however, a victory of machine over
man shocked the world, prompting apocalyptic
warnings about our own role in society and questions
about whether humanitarian could survive in a world
where we could be out thought by a computer.
The man at the centre of that match was chess
The machine was IBM's super computer Deep Blue.
You talk about the fact that it took you quite a long time to get over
Can you explain why it took that long and how
It was my first loss and losing this match,
I mean, I knew I made mistakes and I didn't play well
and I could kick myself in my head for not preparing
Since then, you've become an advocate of AI?
At the end of the day, the future's a self-fulfilling prophecy.
So if we're negative, something wrong will happen.
I'm not telling you that if we're positive we can avoid it,
but at least we have a chance to turn it into an adventure.
Since it's happening anyway, I could see what's happening
in the game of chess, I have been looking for ways
I believe that there's so many things we can do
and when people say, "We don't know what's
That's exactly the reason for us to move there because we don't know,
that was one of the main driving forces in the history of humanity.
The AlphaGo software, that's just won the match with go,
works in a very different way, which is teaching itself the rules.
How do you feel about that kind of AI?
Is that the way that AI should go, learn about the rules of the world?
One should say that Deep Blue was anything but intelligent.
It was as intelligent as your alarm clock.
Very expensive alarm clock, $10 million alarm clock,
Very powerful, brute force, with little chess knowledge,
but chess proved to be vulnerable to this brute force,
But with 200 million positions per second,
that's roughly the average speed of Deep Blue, it showed very
So it gave us almost no insight into the mysteries
AlphaGo is different because it's a self-teaching programme,
and if we're looking for AI definition, it's still hard
to really understand whether AlphaGo is AI because now we're moving
So we still don't understand exactly what human intelligence is.
What do you think of the grand challenges
What are the things that maybe aren't being talked about enough
or that people don't think about enough when it comes
to accepting and implementing artificial intelligence?
One thing that's important to remember thateverything
that we do and we know how to do, machines will do better eventually.
Everything we do and we know how we do.
But there's so many things that we don't know how we do.
Let's concentrate on that because machines have algorithms
and they're getting better and better, but machines have no
curiosity, no passion and, most importantly, machines
Maybe the good thing is that so we know we have purpose,
but we don't know exactly what the purpose is.
So that guarantees that we'll stay around for quite a while.
Now, it's time for artificial intelligence to be put
For Click's show at this year's Hay Festival,
we challenged Click code monkey Stephen Beckett to create a game
We're going to split the audience in two now, right down there.
This half is going to play against this half.
Our teams have to be the last one to fall off this plank,
whether they do that by canny balancing or more boisterous
They're in two teams and by each moving their arms left and right,
they can altogether control where their player goes.
And there's one more surprise feature, by shouting out special key
words they can make their player get bigger and therefore heavier.
So that's the rules of the game, but how can it see what you're doing
Behind the scenes, it's running in a game engine called Unity.
You can download this for free, and it's a great way to get started
There's a massive community out there offering free
I've shared a few of my favourites over on Twitter.
Unity is looking after the graphics and rules of the game and it's also
hooked into IBM's artificially intelligent Watson system,
which is turning the speech from the audience into text
Watson runs in the cloud, so my little laptop can
have the smarts of a supercomputer just using a Wi-Fi connection.
If you've ever used a speech recognition service like Siri,
Alexa or Google, you'll know that sometimes they can be
IBM's Watson is no exception, things like background noise
and music can throw it off, leading to some
But to make the game more fun, I've set it up to also look for the most
So words like say, stay and may will also count as a shout for hey.
Despite this, I didn't anticipate just how loud our
They're so loud in fact that the voice recognition struggled
to hear all the words, so there wasn't quite as much
So that's the voice, but how do we work out
Well, we're using the openFrameworks and OpenCV libraries.
These are two beefy bits of software to help you build creative
OpenFrameworks is more complicated than Unity,
but there are lots of great guides out there if you already have some
This programme takes the feed from our cameras,
looks for edges and then tries to find lines by
So if you move your arm left or right, that counts
And that is all it takes to get 300 people, in a tent,
Give yourself a huge round of applause.
Yeah, never a dull moment when you put us in a tent.
That's it from us for the Hay Festival for this year.
Hopefully, we didn't break too much and they'll have us
In the meantime, why don't you follow us on Facebook for loads
of extra content and of course on Twitter too @BBCClick.
Thanks for watching and, one more time - hey, why.
We will do the easy bit first and I will give you the weekend forecast,
probably the bit you are after anyway! A mix