Wednesday, April 4, 2012

The singularity



Recall the movie Transcendent Man

. . . What is your overall opinion?


















. . . What are Kurzweil's achievements?

. . . Is he a nice guy?

. . . Is he healthy?

. . . What is his opinion on the 4 curves?

. . . . . . linear

. . . . . . exponential

. . . . . . S

. . . . . . plateau

. . . What is his relationship to his father?

. . . . . . goals?

. . . . . . importance?

. . . . . . suppose someone made a movie about you

. . . . . . . . .would it feature your father as much?

. . . Is the movie Transcendence based somehow on this movie?

. . . . . .Let's check the trailer and decide






Ray Kurzweil is also  

. . . an inventor 

. . . author of 

. . . . . . The Singularity is Near

. . . . . . . . . Penguin Books, 2005

. . . . . . and some other books

. . . a Singularitarian

. . . co-founder of Singularity University




Singularitarians (and Singularitarianism)

. . . Related movements include

. . . . . . Transhumanism

. . . . . . Extropianism

. . . . . . Immortalism

. . . Singularitarians hold that

. . . . . . a general technological singularity will happen

. . . . . . specifically, an AI singularity will happen 

(like in Vernor Vinge's article)

. . . . . . it will happen soon "enough"

. . . . . . . . . that means it will affect you

. . . . . . . . . (perhaps not me)

. . . . . . . . . Kurzweil estimates 2045

. . . . . . we should take action, therefore

. . . . . . . . . try to make it good!

. . . . . . . . . . . . since it could perhaps be bad

. . . . . . . . . . . . How? Why? Is it possible?

. . . Are the Singularitarians right?

. . . Anyone here thinking of signing up?


















. . . Some people think singularitarianism is like a religion

. . . Kurzweil thinks it is a quantifiable result of existing trends

. . . . . . About 2045!

. . . Kurzweil co-founded Singularity University



. . . . . . Let's take a look...

. . . . . . The S-curve is Singularity University's worst nightmare

. . . . . . There is significant risk in "putting all your eggs in one basket"

. . . . . . What if you assume exponential change will solve the worlds problems and...

. . . . . . . . . you hit an S-curve? 

. . . . . . . . . Oops - woulda, coulda, shoulda...





More on the Singularity


Or maybe, "The Singularities"



Roots of the concept


. . .Physics and math


Mathematics can be "undefined"


. . .ever see "NaN"?

. . .you might divide by 0, for example




Singularities in physics


. . .Consider the relationship among mass, size & density


. . . . . .Gas is a familiar example


. . . . . . . . .Balloons


. . . . . . . . . . . .Volume of breath vs. volume of balloon


. . . . . . . . .Tires


. . . . . . . . . . . .Pumping a tire


. . . . . . . . . . . .Volume of pump vs. volume of bike tire


. . . . . . . . . . . .Changing volume of airspace in pump


. . . . . .Solids work somewhat similarly!

. . . . . .What is the expression for density?


. . . . . .The center of a black hole in space




An Economic Singularity


Labor: 


. . .How much labor does it take to make a loaf of bread?


. . .A car?


. . .Food for a person for a day?


What happens if required labor reaches zero?

. . .How might this happen?


A crucial fact is:


. . .More labor needed for more stuff


. . . . . .no longer true!


. . . . . .What happens then?


. . . This connects to the mincome concept

. . . . . . Good idea? 

. . . . . . What could happen? 

Does this relate to any of our project topics?





Technological singularity

Let's look at a few graphs:

. . .images.google.com


. . .query: kurzweil graphs


Does this relate to any of our project topics?





The AI singularity


I. J. Good (mathematician):


. . ."Speculations concerning the first ultraintelligent machine" 


. . . . . .in Franz L. Alt and Morris Rubinoff, editors, 
. . . . . .Advances in Computers, 
. . . . . .vol. 6 (1965), pp. 31-88. 
. . . . . .Available on the Web.


Vernor Vinge (sci-fi writer and ex-CS prof.):


. . ."The coming technological singularity: 
      how to survive in the post-human era"


. . . . . .NASA technical report CP-10129 (1993) 
. . . . . .and Whole Earth Review(Winter 1993). 
. . . . . .Available on the Web

     Vinge's "Technological Singularity"


. . .See Vinge quote in his wikipedia article, etc. 


. . . Kurzweil's turning on the universe

. . . . . . intelligent self-propagation in the limit

     Are there any risks? 
          See e.g. www.stoptherobots.org (archive: goo.gl/kPIzn7)





How will we know if a computer is intelligent?






. . .Turing Test


. . .Yearly Loebner Prize competitions

. . . . . . What's the deal currently?

. . .Xprize competitions





The life span singularity


Most closely associated with Aubrey de Grey


. . .see images.google.com




"Escape velocity" concept


. . .Does it work??


. . . . . .We could try simulating it...



Singularity University

. . . http://singularityu.org/

. . . . . . Devoted to the technological singularity

. . . . . . . . . (What was that again?)

Do the technologies below relate to our project topics?

. . . . . . Exponentially improving technologies include

. . . . . . . . .Energy

. . . . . . . . . . . .Only one is high-exponential!

. . . . . . . . .Biotech (esp. genetics)

. . . . . . . . . . . .Carlson curves

. . . . . . . . .Computing (esp. AI & robotics)

. . . . . . . . . . . .What "law" is most famous?



. . . . . . . . . . . .AI has its own special singularity

. . . . . . . . . . . . . . .Robotics contest: RoboCup

. . . . . . . . .Nanotech & fabrication

. . . . . . . . .Let's check the web for some 
                 graphs and such for these 
                 exponentially improving technologies

      NOTE: we're not talking just exponential, but high-exponential

      Software productivity per programmer hour 
      is exponential too, 
      but low-exponential



Exercise: 

In small groups:

Take your topics (or any topic) & discuss:

. . . Where will it be in 5 years?

. . . 10 years?

. . . 20 years?

. . . 50 years?

. . . 100 years?

. . . 200 years?

. . . 1,000 years?

. . . 10,000 years?

. . . Report to the class


"Tastes Like the Singularity, But Less Filling"

    The first name of...

   Chapter fifteen in...
   The Human Race to the Future


Chapter Fifteen

Tastes Like the Singularity

Some think the world as we know it will soon end, ushering in an unimaginable (but hopefully utopian) future. This chapter explains why it is called the “singularity,” and why it’s exciting. Will it radically transform the fabric of reality?

If the artificial intelligence singularity happens, the world will soon thereafter find itself under the sway of entities much smarter tha­­­­­­­n ourselves. Then things will be, as J. B. S. Haldane put it in 1928, “not only queerer than we suppose, but queerer than we can suppose.”1 We will be no more able to understand, outwit, or control an entity much smarter than ourselves than a cow can a person. At least that’s the theory. The counterpoint is the claim that for humans to aspire to build a robot more intelligent than ourselves is impossibly absurd, like for a monkey to aspire to reach the Moon by climbing a tree. But who is to say that no monkey has ever tried?

Singularities

A singularity is a particularly dramatic type of situation in which a mathematical description stops working. For example, suppose we describe some unknown quantity x using the equation x/2=5. Then x=10, because then 10/2=5. No singularity or anything else unusual there. And if the ‘2’ decreases, x gets bigger. But what if it decreases to 0? Then we have x/0=5, and there is no solution for x because ordinary arithmetic does not say what happens if you divide by zero. The value of x in this case is said to be “undefined.” More generally, when what you are dividing by becomes zero, whether it is money on line 54 of the infamous Connecticut 2008 income tax form CT-1040,2 volume of the mass at the center of a black hole, or whatever it may be, you’ve encountered a singularity, and there is no answer. Connecticut tax authorities might take a dim view of the matter, but astrophysicists are concerned: It is thought that inside a black hole, the gravitational field forces everything inside the event horizon into a dot at the center. Since calculating density requires dividing by volume (density = mass/volume), the density of matter at the center of a black hole would be undefined if the volume truly became zero, thus creating a singularity. Luckily for reality, physics has proposed theories, like quantum gravity, that avoid this mathematical modeling problem by allowing volume to get very small while preventing it from becoming precisely zero.

The AI singularity
Somewhat similarly, the AI singularity occurs when the attempt to calculate the limits of computer intelligence breaks down, seemingly predicting an unending spiral toward infinite intelligence. However, truly infinite intelligence can’t happen anymore than a misguided Connecticut resident could have made the entire state financial infrastructure go “poof!” in 2008 by trying to fill out line 53 without having any Connecticut adjusted gross income. Similarly, there is something very strange at the center of a black hole, but it is real even if we don’t yet know exactly what it is.
Singularities are properties of defective descriptions of the real phenomena, not of real phenomena themselves. For the AI singularity, the real phenomenon involves computers getting steadily more powerful. They will come to outpace human intelligence in more and more ways. Computers have long exceeded our intelligence in speed and reliability of arithmetic calculation. They can play chess better. They can play Jeopardy! better. Each new generation of modern computers can only be designed with the help of previous generations of computers. This process will continue but there will never be a moment when computers suddenly become smarter than humans and take over, because intelligence is seemingly so complex and indefinable a concept that no single satisfactory measure of it exists, or perhaps can exist, and therefore there can be no clean line of demarcation between less intelligent, and more intelligent, than humans.
Thus we won’t wake up one day to find our previously loved machines suddenly informing us, as the notorious Japanese video game Zero Wing put it, “All your base are belong to us.”3 But the trends do suggest that they are gaining greater and greater intelligence and influence on our lives, perhaps eventually with revolutionary results.
So what is intelligence and how can we tell if computers have it? The tricky question of properly defining and measuring intelligence does not seem to be solvable. At least, it hasn’t been solved yet. Nonetheless, it is obvious that intelligence exists and that some people have more of it than others. The classical approach to defining when computers have intelligence is the so-called Turing Test, created by British code breaker and war hero Alan Turing.4 (Turing was long thought to have later committed suicide by eating a poisoned apple, like Snow White, after being convicted of homosexuality and then “treated” with hormone injections in accordance with the British legal process of the time. However the detailed cause of death is now in dispute.)
In essence the Turing Test says that, in a keyboard chat session, if one can’t tell whether one is texting with a chatbot or a person, and it is a chatbot, the chatbot should be considered intelligent. This is a clever idea, though not perfect:
  • One problem is its assumption that writing intelligent-seeming text messages actually requires intelligence. Maybe it doesn’t.
  • Another is that people must be able to tell the difference between text messages produced by intelligent vs. non-intelligent entities. Maybe they can’t. For example, in 2014 a chatbot called “Eugene Goostman” posed as a 13-year old speaker of English as a second language and, many believe, passed the Turing Test. However no one seriously claims the bot is actually intelligent.
  • A third is that it ignores the possibility that a computer could be intelligent yet still unable to pass the test, somewhat like a person not fluent in your language, though intelligent, would be unable to pretend fluency.

Turing Test considered harmful
The first chatbot was the 1967 program ELIZA.5 J. Weizenbaum, its creator, wrote, “ELIZA created the most remarkable illusion of having ‘understood’ in the minds of the many people who conversed with it.”6 ELIZA is probably too primitive to have that effect on today’s much more sophisticated computer users and does not pass the Turing Test (it’s been tried). Yet the Turing Test is useful and has inspired a regular contest. Since 1991 the “Loebner Prize7 has been awarded yearly to the owner of the chatbot contestant that comes closest to fooling a panel of human judges. As a side note, AI pioneer Marvin Minsky is on record as offering a $100 cash prize to anyone who can get Loebner to stop sponsoring the “stupid … obnoxious and unproductive” prize.8 For his part, Loebner (a single gentleman and advocate of legalized prostitution) argues this actually makes Minsky a co-sponsor of the prize, since he would have to give his cash offering to the owner of the first chatbot to fully pass the test, finally winning Loebner’s Grand Prize and thereby ending the annual competitions.
The Turing test is clearly suspect on logical grounds alone (as explained above), and most anyone working on chatbots will confirm that, in practice, they don’t consider their impressive creations to be truly intelligent. But that is likely to change at some point. Chatbot performance appears to be generally improving from year to year, so progress is occurring. Indeed, the winner’s performance in the Loebner Prize competitions over time would appear to be one way to measure progress in computer intelligence. Although not a perfect metric, it is an interesting one.
Other metrics exist as well, also imperfect but very different from chatbot performance and from each other. One measures a computer’s creativity (http://goo.gl/7pkwJp). Game playing is another fruitful source of potential ways to measure improvements in computer abilities that seem to require intelligence, because games tend to provide a clear context that supports quantifying performance. Progressively increasing computer chess performance had already won the world championship years ago, in 1997.9 Soccer is different from chess, but robots compete in soccer in the robocup games, held yearly since 1997. Their soccer performance represents another metric for intelligence.
A trajectory of improvement in a composite of different tasks indicative of computer intelligence is more convincing than one of improvement in any one metric, in part because intelligence itself is such a complex, composite attribute. A useful approach might be to keep a running count of human games that machines are able to play better than humans. Chess and Jeopardy! are already there, but soccer is not. (Hopeful robocup organizers however have a goal to, “By the year 2050, develop a team of fully autonomous humanoid robots that can win against the human world soccer champion team.”10)

What we can do

The AI singularity will not rear up overnight, instantly changing your life dramatically for either the worse or, as riskily assumed by some, the better. Every age has its messianic movements and its rapturous apocalypticists. Still, AI does appear to be improving. Computers are already far in advance of human arithmetic intelligence, and society has leveraged that into many benefits, from calculators to income tax software to spacecraft navigation systems and more. This will continue to happen with other computer capabilities. Thus the number of such capabilities that exceed human performance, such as mishap-free motor vehicles, will grow progressively.
Popular movies have long relied on the concept of a secretive and misanthropic “mad scientist” who creates a robot of great capabilities. That will probably not happen. It takes a sizeable community of skilled humans to create even a pencil. Referring to everything from chopping trees for the body to making rubber and metal for the eraser, L. E. Read notes in his classic essay I, pencil, “… not a single person on the face of this Earth knows how to make me.”11 Even the simplest computer is obviously far more complex than a pencil. For a robot to create another robot of greater capability than itself would require either large numbers of humans and other computers to help, just as it does now, or a single robot with the intelligence, motor skills, and financial resources of thousands of humans and their computers, factories, banks, etc. How many thousands? There is no way to know for sure. But consider that human societies of thousands, once isolated, have lost even basic pre-industrial technologies.12 Tasmania is a well-known example.

An important need is for metrics that can tell us, in practical terms, the rate of progress by which artificial intelligence is marinating society. Arithmetic, the Turing Test, chess, Jeopardy!, soccer, and even self-driving cars are interesting but do not fit the bill by themselves. As factors in a richer, composite metric, however they can play a part. Another factor that might be useful is to count the rate of new AI applications becoming available over time. A suitable composite metric should be debated and converged upon by society.

   

Wednesday, March 28, 2012

Will we find other intelligent life?

Background


         The beginnings of 
     belief in 
     extraterrestrial intelligence


     Can you think of 
     any early example?




















Many religions!


     For example:


     God is intelligent


         ...and everywhere


    "Everywhere" 
    must include 
    interstellar space





A tale of two Well(e)s


    Novel written in 1898 by H.G. Wells
          Here are some 
          more interesting covers



    It inspired an 
    Orson Welles radio show

                    The show was broadcast
          Halloween, 1938

          What happened?




Intelligent Martians was a widespread concept


     1800s:


           Percival Lowell and the canals


           Numerous novels


          See
          "Imagining Mars: a Literary History"
          (by R. Crossley)


     1900s:

        1912: Edgar Rice Burroughs 
        "A Princess of Mars"


             The princess had 
             beautiful green (of course!) hair
             ..and so on


    2000s: 

        2012: Story back in the news again


            Why?





Let's move to more technical approaches



Fermi Paradox


     (Enrico Fermi
     was a 
     renowned physicist)

             Italian-born American physicist (1901-1953)

      Awarded Nobel prize 1938

      Considered a father of the atomic bomb

      Died of cancer
      (possibly due to radiation exposure)


     His "paradox":

        Over 100 billion stars 
        in our galaxy,
        the Milky Way


        Roughly (very) 
        there are 
        100 billion
        to 1 trillion
        galaxies



    So how many stars in the universe?


      What fraction have planets?

           What fraction have 
           Earth-like planets?

                 These are called
                 "Earth analogs"

                      1.4 - 2.7%

                      Do pictures exist 
                      of a few of them?                       


     So why no sign of intelligent life?
         (Er, except here)


    That's the "Fermi Paradox"!





So....
1) Why no sign of intelligent life?
         . . . and . . .
2) Will that change?












Fish supposedly live in the ocean


If you fill a cup at the beach...
...where are the fish?






Drake Equation

N=R  x  fp  x  n x  f x  f x  fc  x  L


N:  # advanced civilizations 
     in Milky Way with which
     we could communicate
R new stars formed per year
fp:  fraction of stars with planets
ne:  Suitable planets per star with planets
fl:   Fraction of suitable planets that do develop life
fi:   Fraction of those planets that develop intelligence
fc:  Fraction of intelligent civilizations that are detectable
L:  Length of time civilizations are detectable



N=R  x  fp  x  n x  f x  f x  fc  x  L
Suppose R is 10/year
Let's estimate the others ourselves!
Note: estimate of 100 billion Earth-like planets in Milky Way as of 2013
   Then what is N?


   Why no little green men (or whatever)?




   Crop circles, UFOs, what other evidence?




   How could we 
   communicate with
   extraterrestrial beings?




Possible problem: 
     we can't communicate with dolphins
     (for example)
     and they're
     right here on Earth!




How to find extraterrestrial life


    (Intelligent or otherwise)


    Find planets


    How to do that?


    Find oxygen


    Why so important?


    Detect radio waves, etc.




Discovering Earth-like planets


    Zero extra-solar planets 
    were known when 
   you were born


   They are being discovered 
   (at an increasing rate)


   First ones were huge and hot


   We are getting better 
   at finding more 
   Earth-like ones


   Here are three:


   Gliese 667 Cc


   Gliese:
       from "Gliese Catalog of Nearby Stars"


   Gliese 667:
       A triple star
       all of them small
   
   Gliese 667 C:
       Star C of Gliese 667


       37% of Sun's mass
       42% of Sun's radius
       1.4% of Sun's brightness
  
    Should last a lot longer than the Sun!


   Gliese 667 Cc
       2nd planet of Gliese 667
       3.9x mass of Earth
       Orbits Gliese 667 every 4 Earth weeks
           Imagine what the year is like
       Its star would be 
       2.3x as wide in the sky 
       as the Sun
         ...but dimmer per unit area
         ...reddish, since cooler than Sun
         ...temperature should allow liquid water
         ...do photos exist?



         ...well artists' impressions do
         ...let's check!
         ...only 22.1 light-years away
           (oops)


Gliese 581:
    Red dwarf star
    Might not exist
       But it might!
    Gliese 581 g is a planet
    Roughly 4x Earth mass
    Tidally locked to star
         That is a problem (why?)








         A thick atmosphere could solve the problem
             What would it be like there?
    




   Gliese 370 b
       Another interesting planet
       wikipedia, etc., has artist's impression
       Also called HD 85512 b
              (we use nicknames, so why not?)
       At least 3x Earth mass
       Gravity 1.4x Earth (at least)
       What would that feel like?
       May have liquid water
           Temperature depends on
           various unknowns
    

Monday, March 26, 2012

Transit: people on the move

Transit: People on the Move


Transportation: 
. . . moving whatever

Transit: 
. . . moving people

Future of transit:

    One of the few areas in which 
    the US has a serious 
    longer-term planning effort

    In central Arkansas:
        http://metroplan.org
                 630 Monorail Concept: 
                     http://www.youtube.com/watch?v=KqB8RwnmZb4


        http://imaginecentralarkansas.org/
                         A product of metroplan.org


Some ways to organize transit discussion

. . .  small to big 

. . . . . . e.g. roller skates to cruise ship

. . . # people

. . . . . . personal transit to ... what?

. . . distance

. . . . . . What to what?

. . . speed


. . . . . . What to what?

. . . impact on society

. . . . . . for example:
. . . . . . (2016) let's list your topics on the board
. . . . . . . . . then refer to them as appropriate as we go along



Methods of transit

For as long as people have existed

. . . we have needed to go places 

. . . let's discuss past, current, & future methods


For each way to organize from the previous slide
. . .list past, current, & future methods
For each method
. . .how do our project topics relate to each?
For each method
. . .what substitutions are possible?
. . . . . .see substitutions slides below as needed
For each future method
. . .answer the "...other questions" below





Substitutes for Walking

. . . walking

. . . unicycles (see images)

. . . . . . unicycle of the future:

. . . . . . . . . solowheel!
                  short video


. . . bikes

. . . . . . what will bikes of the future be like?

. . . . . . . . . let's figure it out

. . . . . . . . . then let's check the web

. . . . . . . . . . . . images.google.com

. . . . . . . . . . . . general web search


. . . scooters

. . . . . . wheels front-and-back

. . . . . . wheels side-to-side

. . . . . . . . . Segway

. . . . . . which has more future potential?

. . . . . . what will be the scooter of the future?


. . . trikes

. . . . . . will they displace bikes?

. . . . . . . . . what will trikes of the future be like?

. . . . . . . . . . . . let's think first, then check the web


. . . pedibuses

. . . . . . Do they have a future?


. . . roller skates

. . . . . . from traditional to rollerblades

. . . . . . . . . (check online pics to see?)

. . . . . . Skates of the future?

. . . . . . Basically, shoes of the future!



. . . skateboards

. . . . . . Skateboards of the future?



Substitutes for Horses

. . . horse

. . . future of horses?


. . . cars

. . . . . . horses are mobile

. . . . . . cars are "auto-mobile"

. . . . . . . . . "auto" means "self"

. . . . . . so what is an autoautomobile?




. . . . . . Will self-driving cars differ from today's cars?






. . . . . . . . . fewer of them needed, personal ownership not needed, use garage and $ for other things, Uber et al. could use, municipalities could replace bus fleets, commuting could become less problematic, use your car as a cab while you sleep or work, prices lower (why?), ...



. . . hovercraft

. . . . . . Why might hovercraft become important in the future?










. . . . . . . . . roads could just be flat grass strips: cheaper!

. . . . . . . . . what if hovercraft happen?



. . . jet packs (1, 2)

. . . . . . we could check youtube also


. . . small planes?

. . . . . .  is there a future there?


. . . rocket ships?


. . . . . . multiple pilots works better

. . .  how about flying cars?

. . . . . . check youtube for examples

. . . . . . is there a future there?


. . . autogyro?

. . . . . . check wikipedia/whatever for definition

. . . . . . check youtube to see them in action

. . . . . . is there a future here?



. . . helicopter?

. . . . . . is there a future for them?



What are the future prospects for substituting for these?


. . . powered parachutes
. . . trains
. . . subways
. . . buses
. . . spaceships
. . . moving sidewalks
. . . escalators
. . . elevators
. . . planes
. . . boats
. . . evacuated tube transport
. . . . . . e.g. a hyperloop
. . . . . . . . . (do web search)
. . . shoes that produce electricity
. . . tiny robocars with telepresence function
. . . current telepresence bots



Some other questions to ask about these


What would change for you if each of these took hold?

. . . quality of life?

. . . privacy? 

. . . security?

. . . career impacts?

. . . what else?

. . . how have these things impacted the past?

. . . what other possibilities for future impacts?

What about other people?

What about businesses, governments...?

What about society as a whole?