3. Random : Having no
specific pattern, purpose, or
objective.
4. So what’s the big deal with
true randomness?
Computer’s can’t generate randomness, they use
things like atmospheric noise to generate random
numbers.
This is called Pseudo-Random generators, becuase if
you have enough information and a powerful enough
computer, you could predict the values.
5. Chaos Theory
Chaos Theory, AKA “The Butterfly Effect” explains
that, a small event happening thousands of years
ago, could lead to devastating events in the
future, for example, killing a butterfly in China could
make a storm here right now.
This gives the storm the appearance to be
random, when in reality it’s not.
7. This question is of vital importance, it is one
of the few ways to find real differences
between the human brain and a computer.
It also answers the “Free Will ” enigma. This
is, if we are truly free to make decisions or if
we are just subject to foreign situmulus to
take a certain decision.
8. Until now , Physicists believed
that, eventhough no law of Physics prevents
ir from happening, true randomness is not
possible
But now, due to a Phenomenon called
“Quantum Noise” and other Quantum
events, this belief is being challenged.
9. The set up: A photon is fired at a down-converter, which
converts it into two entangled photons. These photons
then go through polarizers that are set at two different
angles. Finally, photo-detectors measure whether a
photon passes through their polarizer or not.
10. For reasons of mathematical complexity, the result of
this experiment is impossible to predict, therefore
true randomness may exist , somehow , in our
universe.
As an aside, it turns out that the absolute randomness
comes from the fact that every result of every interaction is
expressed in parallel universes (you can’t predict two or
more mutually exclusive, yet simultaneous results).
Despite all of this, the fact that it cannot be predicted
doesn’t mean that it is random, it may be a case of missing
information.
11. This is an algorithm used im programming
to create an illusion of randomness.
Mod arithmetic (sometimes called clock
arithmetic) is a system of arithmetic for
integers, where numbers "wrap around"
after they reach a certain value—the
modulus.
Like a clock
12. Human Brain &
Randomness
The brain is the center of our nervous system.
It works by electric impulses that travel through
the long protoplasmic fibers called axons neurons.
There are about 15-33 billion neurons.
As Hippocrates sayed: "Men ought to know that
from nothing else but the brain come
joys, delights, laughter and sports, and
sorrows, griefs, despondency, and lamentations.”
13. How We Did Our
Experiment:
We asked people of all ages and gender to “Give us a
random number between 1 and 100 as fast as they
could” Then we made sure that the random they had
picked was completely random by asking them.
If the numbers were truly random the mean of all
numbers should be 50, like when you through a dice
enough times, the mean is always 3.
14.
15.
16. Conclusions:
The fact that most medians are 50 indicates that
there was some randomness.
Despite this the total mean :44.9 is too low to
conclude that the numbers were completely random
Also, 59% of the numbers were odd, again, this shows
unrandomness.
