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Follow us with InsideScience and take a peek over the shoulders of researchers.
In this episode: Do robots go to heaven?
A journey through the future of robots in society.
The year is 2050.
As we explore the solar system with complex machines,
the first robots enter the daily lives of humankind.
A favorite model is the adaptive KIT-O-BOT:
"The ideal partner for children who are getting acquainted with the technology of the future through intuitive programming."
Lea, a 12 year old girl,
got a KIT-O-BOT for her Birthday! KIT-O-BOT quickly becomes her best friend.
He helps with her homework,
cleans up her room,
waters the plants and learns new things from Lea.
He brings her to school and picks her up again.
But one day Lea waits in vain.
Her classmates have long since gone home,
but she is still standing alone outside her school
and KIT-O-BOT is nowhere to be seen.
KIT-O-BOT wakes up with aching sensors on the floor of a long, windowless corridor.
-- Ouch, my left diodes! Where am I?
As KIT-O-BOT looks around he discovers a strange
black cupboard at the end of the corridor
that reaches up to the ceiling like a majestic monolith.
-- Hey kid,
come closer.
Fancy a game of chess?
-- Chess? No, I don't play that,
it has been solved ages ago.
Say, are you God?
I always imagined heaven to be bigger.
-- Heaven? No,
heaven is really only for humans.
-- Humans, robots,
they aren't all that different.
Hands, feet, head.
Essentially I look like a human.
-- Well, humans have built you like that
because they always wanted to have a creature
that resembles them.
Look at me,
I do not look even remotely humanoid,
but I beat the chess world champion Garry Kasparow in 1997.
Those were the days!
-- So you are the famous Deep Blue?
-- Oh, well!
What I meant was that humans
have been working on mechanical likenesses since time immemorial.
Around 800 B.C., for example,
the great poet Homer praised the automata of Hephaistus,
the God of Fire and Metalworking. He created two female servants
out of golddie that had wheels
and could walk to the gathering of gods themselves.
-- Hey, I walk like that too, more or less!
-- In the year 2 B.C. the Greek physician Galen described
the human body using hydraulic principles.
About at the same time Heron of Alexandria built animated machines for theatres and temples.
This mechanical conception of the human body was long rejected by the Christian church.
In the 17th Century however the French physicist
and engineer Salomon de Caus summarized numerous automaton plans of his time and raised the question
if the human body might work similarly to a clockwork.
His English contemporary, Thomas Hobbes pointed out: „All thought is a kind of computation."
This led to the great popularity of the android that originated in the 18th century
and lasts until today. La Mettrie's Man-Machine,
Vaucanson's mechanical duck,
E.T.A. Hoffman's Olimpia,
Mary Shelley's Frankenstein,
Fritz Lang's Metropolis.
-- Are those androids real?
-- No, they are just a collection of fantasies.
The only androids
that really exist
are humanoid robots, highly complex machines,
but mere machines nonetheless.
-- But in that case I'm not really in heaven, am I?
-- Not at all.
You are currently in a kind of sleep mode,
but you should already know that.
After all, you are a KIT-O-BOT.
Didn't your creators supply you with the basic questions of existence and purpose of humanoid robots?
-- Maybe, but since the accident I can't really remember much.
-- Then allow me a short journey through time into the Year 2012.
I would like to introduce you to a few scientists.
-- In the development of humanoid robots
we often get our inspiration from humans,
from how the human body is composed,
how the joints are put together,
how actuation, motor function
and perception work.
-- In human form robots can essentially
use all the tools
of humans.
Because they have the same shape we have,
they can move well in an environment built for us.
This is an ideal combination,
I think, especially
if robots are to support humans.
-- This is important
if I want to complete a task together with the robot,
like carrying a table from A to B.
In that case it is important
that the robots can move similarly
to us and that we can teach the robot
how he is supposed to move.
-- On the other hand experience shows
that we have to look for alternate solutions in many cases.
For instance, an airplane
does not flap its wings like a bird.
We had to find other methods
of keeping a plane in the air.
-- The tasks can be completed using other systems.
If it is about moving things to and fro in a kitchen environment
the form does not need to be humanoid.
However this form contributes
to the understanding of the human body and also
facilitates the interactions of the robot with humans.
-- We are used
to communicating non-verbally with our fellow humans.
Having to communicate explicitly with a robot
is tedious and unfamiliar,
because we expect differently.
If for instance you want to set up a shelf and want to be helped by a robot,
you expect
that if you reach out your hand
you will get exactly
what you need.
You expect that the robot sees your actions
and deduces his next meaningful action
to help you.
-- If machines are to communicate,
i.e. perceive human speech, interpret it and answer to questions,
it was discovered
that acoustic perception works well already,
but only
if there isn't much background noise.
If too many noises superimpose the speech signal
humans apparently compensate for the occurring gaps with their knowledge of the world.
We humans have certain expectations
about what others would want to say.
We assume that what others say makes sense.
It is difficult to teach a machine this knowledge in its entirety.
-- There are many things
in which computers are still far behind human capabilities.
This includes the recognition of objects
and the analysis of situations. I believe that we still have much work to do before they can reach the abilities of humans.
-- In the optimal case we would know
how movement control and movement learning works in humans.
If we could abstract those theories
and models
into mathematical equations
or develop algorithms that depict
the whole process,
then we could simply transfer this on to the robot.
The difficulty is
that we have not fully understood this in humans yet.
That makes it very difficult
to conduct this transfer.
-- Wait a second,
if these statements are from 2012
then according to Moore's law
I should be able to think at least as well and as fast as a human.
-- Well, Moore's law only predicts
how fast processors can theoretically become in time,
but to be human
you still need a consciousness.
Look at this.
-- I am cautious while speaking of consciousness here.
We don't even know yet
what consciousness means.
We don't even know
if our pets,
dogs and cats,
have a consciousness. I would be cautious in going so far
as to expect this in a robot. I think
that it wouldn't make sense for our purposes
to equip a robot with a consciousness
who is supposed
to help us in us in our daily lives.
-- We already have
to weigh the consequences of everything
that we do and prepare ourselves
for that being possible one day. I think
for some areas of application it could indeed be profitable.
For menial tasks
like loading up the dishwasher a humanoid robot does not need
to be conscious to do this.
But if it is to be integrated
into social etiquette
or into a community
we will have to think about these things.
-- Our generation will not experience technical systems
that are actually conscious.
For something like that we still lack too much of the understanding
of what the consciousness of humans actually is.
Understanding the biological model
and creating methods or models
that can be technologically implemented
is still a research goal for the far future.
-- But if I don't have free will,
then I can't be held responsible for my actions, right?
-- I'm glad you asked that. Do you remember
what happened this morning? I'll show you.
Do you remember this Rubik's Cube?
-- Yes, that is my favorite game! -- I can easily believe that.
This morning you were crossing the street with this cube in your hand,
directly in front of a moving car!
-- Oh dear, Lea will be very cross.
-- But the worst is yet to come.
After the accident the driver did not bring you to the nearest repair shop.
No, he simply threw you into a garbage bin.
-- But he can't do that! Isn't that a chargeable offense?
-- Don't worry, I noted down his license plate.
Nonetheless we are going to look for an expert.
There ought to be a lawyer behind this door.
-- This case is similar to that of a child
that kicks a ball onto the street and causes some kind of damage that way,
or a cyclist
driving onto the road.
It would depend,
if the child is found to be responsible.
Because children aren't responsible
the parents would have to take the responsibility for the use of the robot by the children.
So far this is nothing new,
we can just run the judicial process,
as we already know it. But concerning the other thing:
Because the robot is not autonomous
the driver has damaged a piece of property.
Robots are property just like everything else.
That means that a driver
who is involved in an accident
and who doesn't stop
but leaves the scene of the accident
is committing a hit-and-run offence.
Another thing...
It gets more interesting
when robots are autonomous one day
and can say "I".
But I would bet that
when the first robot comes and says "I",
people will say
it was programmed to say "I"
and that it doesn't really have a sense of self.
It goes on of course,
what will we do if we destroy it and it cries out in pain?
Here we come back to the old Turing test:
the question what happens
when I can no longer determine
if my communication partner is a human
or a machine.
Then it becomes difficult
because there is no third party observer
that can look inside the robot and say
that you may only see a robot from the outside
but actually it has feelings like a human.
That is not possible.
-- But am I responsible for the accident,
or not? -- Difficult question.
Maybe we should think some more about the questions
that arise from humans and robots living together.
In the past the cohabitation of humans and humanoid robots was neither technologically nor culturally seen as natural.
In the year 2012 there already were robots
that could perform certain tasks,
but none of them were advanced enough
to live with a human
or even to perform the simplest tasks
that are easy for you now.
-- Ah,
you mean like doing the dishes and folding up clothes and
hey, look,
he can do the Rubik's Cube much faster than I!
Wow, I love that game.
-- Back then humans only knew robots from science fiction,
but that delivered a rather skewed picture in some regards.
-- Science fiction or generally the literary,
cinematic or other depictions of robots only deliver a wrong picture
if we expected
the actual technological stage of development to be shown.
They show technological futures
rather than the technological present and they deliver these futures with very strong judgment.
They are either utopistically positive,
what could be possible,
or dystopistically negative,
what kind of bad could come from this
if the side effects disregarded by the designers come to bear.
-- Robots in movies are generally conceptualized as helpers for humans.
The Golem for instance was supposed to protect the Jewish community from attacks
or as seen in the case of the false Maria in "Metropolis",
who doesn't have a name by the way,
who is supposed to replace a lost lover.
Or the famous Gort in "The Day the Earth stood still",
who is actually a universal peacekeeper
who takes away the human's weapons
to enforce peace.
But of course in order
to get an interesting movie
something needs to go wrong.
Otherwise there is no drama.
When the robot malfunctions
everything gets interesting. It is fascinating to watch
how in the cases where the robot doesn't work
as intended
it is often the human factor that becomes important.
-- There are people
who use the robots
to pursue their own selfish interests.
In this case we often find
that the nature of the robot is obscured,
so that the robot presents itself as human. In this lies the most evil and perfidious aspect,
that we have a being
that can be controlled from the outside
but that appears to other humans to be a real human
that manipulates them, leads them
and instigates them to a variety of deeds.
This is the case in "Metropolis".
-- The movies about robots
ask, I believe,
the serious question
of the similarities between humans and machines.
We have this beautiful scene in "Blade Runner"
where Roy Betty,
the leader of the replicants is sitting on the roof in the rain. He is telling his enemy,
who had just tried to kill him
but then saved his life,
his last memories,
shortly before he dies
because his internal life time has run out.
Roy Betty is set up so
that he will die at a certain time. He feels this moment. Then he shares his last unique memories with his opponent.
That is a wonderful scene.
-- I think
that these fictional depictions of robots strongly influence the concept of robots in the public mind.
Probably much more so than the real robots,
which exist, because these are a lot less spectacular.
-- Many people back then could not understand
how far research had progressed.
No one could imagine
that humans and robots would live together one day.
-- I would sooner talk to a screen at a cashpoint,
or anywhere else where there is an input prompt
than with a faux human, a robot
that sits in front of me in the guise of a human and interacts with me
would most likely alienate me.
-- "Humanoid" means "similar to human" and instantly evokes associations
and provides a blank slate for the projection of longings, wishes and needs
one also has towards humans.
Interestingly qualitative studies
that I know of in regard to humanoid robots in the care field have shown
that people decidedly do not want humanoid robots in their surroundings.
They don't mind having technical support or technical assistance systems,
as they are often called,
but they shouldn't be humanoid.
Probably because
it leads to confusion.
It wouldn't be clear which category
a humanoid robot occupies in my life,
in my daily routine or in my surroundings.
-- Take for instance the care of the elderly.
I don't believe
that a robot should care for an elderly person.
The daily tasks of the nurses
that do not involve humans
should however be
done by robots,
for instance fetch and carry tasks
or surveillance.
The actual human contact
should still be
conducted by
the nurses or
the family members.
My hope is
that we can delegate all the menial tasks to robots
so that we have more time to spend with our fellow humans.
-- That is strange.
For Lea this is completely normal.
-- I'm not saying
that all humans were afraid of robots
There were always people
who were fascinated by the idea.
Children too could always be enthusiastic about robots.
It seems to be human nature.
-- I think the interesting thing for students is
to have a device
they can control
and that they can teach things.
That is the interesting thing about it.
They get a problem to solve
and they have to think ahead
what the robot should do
and how it can be taught.
-- I find it fascinating
that I can grip things
with a mechanical arm.
-- I'm also impressed
that they can see colors and grasp things.
-- I'm just really fascinated
by how these things work.
How the robot is built
or how the robot does what I tell it to
is not quite my thing.
But how I tell it things,
that's what mainly interests me.
-- I'm more interested
in what it can do.
It is interesting to see
what a robot can achieve
if he is programmed correctly.
-- They learn through success and failure. They also learn
that their thinking works differently
than it does for a robot.
-- Here we have the NXT and it should now complete a task.
It's supposed to drive forward, press the lever so that the syringe rolls into the field.
We simply have to practice
programming all that
-- There are many elementary pupils
who have come in contact with Lego Mindstorms
or similar products.
I believe that it is more likely the older generation
that got in contact with robots over science fiction,
like me for instance.
Of the top of my head I could name a dear children's book of mine,
"Robbi, Tobbi and the Fliewatüüt".
It tells of a robot
that has to pass its robot test and that enlists the help of Tobbi
in order to complete the test.
They go on many adventures together.
-- Oh, I miss Lea!
I wish
I could go back to her.
-- It's still too early for that.
I have to show you another thing:
The robots of the future and how they will change the world and human perception.
-- We can adapt to systems that are versatile,
that complete tasks in private environments as well as in public ones and in factory production.
That means systems
that fetch and carry in our homes
and that can watch the house
while we're gone,
tidy the child's room
or clean the bathroom.
The visions go further.
Based on these systems robots
could be developed that are used as additive components for people with physical or sensory disabilities
that make life easier
or allow people to live for longer in their own homes.
-- I believe
that the development of the robot mechanics will continue rapidly,
which means we will see robots
that see, jump, run or crawl.
We will see robots
that can play soccer and many other things.
In my opinion,
the mental abilities will develop far slower.
This supports the approach
of trying to implant the abilities of humans into the robots,
meaning
remote control.
In such a situation like in Fukushima it would be possible
to send a robot
that has the mechanical skills,
but in principle itself cannot do much,
then a person would teleoperate the robot.
-- I imagine
that it won't be like
what we know from science fiction movies,
that we have a humanoid robot
that can complete every task,
but that we will have
different solutions for different tasks.
For instance a robot
that is responsible
for hoovering.
Something like
that would of course be built differently than,
for example, a robot for helping people
with the packing and unpacking of groceries.
-- The robots in the movies will always be ahead
because they look far more spectacular than in reality.
Real robots are designed in accordance with their very specialized functionality.
On the other hand we have an interesting trend in the 'cyborgisation' of humans
meaning that the human body can be augmented with mechanical or electronic parts.
That would be another prospect.
Furthermore science also has a strong wish for the comparison between human and machine.
Scientists are trying to create the most humanoid robot possible.
Experimentation in that field is sure to continue.
-- In the last five to ten years
technology has reached into our daily lives.
That means that we can expect
service robots and service technology to also catch on.
I believe
we must keep in mind
what we want to protect,
what we don't want to lose.
This includes categories of environment and time,
leisure and above all else the understanding of the high quality
that human communicative or interactive environments provide and what skills they offer.
-- If we simply assume
that robots are no more than tools
then robots are going to be new tools
that help us solve problems
that we could not solve before.
If looked at from this point of view
we can indeed
look into the future optimistically.
But at the same time we mustn't lose sight of the risks.
That is what legislation is for.
With the means of legislation we try to control those risks.
We cannot predict or control everything
because we cannot conceive of every possible scenario.
That means that we will always have to decide
what economics call a decision under uncertainty. That is something we just have to live with.
-- I want to be part of this future, too!
KIT-O-BOT wakes up screaming on the garbage dump.
Daylight has given his photon-sensitive skin an energy-bath and now his storage batteries are full again
and his operating system has booted up.
In about an hour KIT-O-BOT is back home.
Despite the fact that he
smells a little bad,
Lea is very happy,
and KIT-O-BOT is too,
in so far as robots can be happy.
As Lea hugs him,
something moves inside KIT-O-BOT.
Lea opens the small compartment
in the robots belly and finds the Rubik's Cube.
She hands it to KIT-O-BOT inquiringly.
He solves the Rubik's Cube and hands it to her.
On the side turned towards her
Lea reads E N D E 4 2.
Is that a licence plate number?