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COMPLEXITY - PowerPoint PPT Presentation

COMPLEXITY. Are YOU sufficiently complex?. How to celebrate it, leverage it, and NOT avoid it!. FROM OCCAM’S RAZOR. Simple = Best. COMPLEXITY. Are YOU sufficiently complex?. How to celebrate it, leverage it, and NOT avoid it!. FROM OCCAM’S RAZOR. Simple = Best. Simple but no Simpler.

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Are YOU sufficiently complex?

How to celebrate it, leverage it, and NOT avoid it!

FROM OCCAM’S

RAZOR

Simple = Best

Are YOU sufficiently complex?

How to celebrate it, leverage it, and NOT avoid it!

FROM OCCAM’S

RAZOR

Simple = Best

Simple but no

Simpler

Are YOU sufficiently complex?

How to celebrate it, leverage it, and NOT avoid it!

FROM OCCAM’S

RAZOR

TO MANDELBROT’S

REVENGE

Keep it Complex,

Stupid!

Simple = Best

Simple but no

Simpler

COURTESY:xkcd Blog.

STIMULI

iϵN

CORRELATES

Y

BRAIN STATE

X

COURTESY:xkcd Blog.

Feedback between brain and stimuli, correlates, and future brain states?

STIMULI

iϵN

CORRELATES

Y

BRAIN STATE

X

COURTESY:xkcd Blog.

LESSON:

Embracing complexity turns a black box into a gray one.

Small-scale events: a butterfly flaps its wings in Kansas, hello Hurricane Dolly).

Small perturbations, magnified….

COURTESY: Wikipedia

(http://en.wikipedia.org/wiki/Butterfly_effect)

COURTESY:

http://ecosystems.noaa.gov/

• LESSON: complex systems live and “think” outside the box!

Poincare is dead. Long live Poincare! condition……

Q: How many ways can you rearrange the pixels of an image?

A: the number of pixels! (that’s factorial).

Want to see a neat trick? Count to 11…….

Poincare is dead. Long live Poincare! condition……

NO PEEKING!

Want to see a neat trick? Count to 11…….

BUT there’s a surprise in store (stay tuned)!

Poincare Recurrence:

Crutchfield, J. et.al Chaos. Scientific American, December (1986).

Poincare is dead. Long live Poincare! condition……

NO PEEKING!

Want to see a neat trick? Count to 11…….

Ta-da! I’m a self-fulfilling and recurrent phenomenon!

Poincare Recurrence:

Crutchfield, J. et.al Chaos. Scientific American, December (1986).

“Computational” Complexity condition……

Think big data….think parallel!

“Computational” Complexity condition……

Think big data….think parallel!

OR

“Computational” Complexity condition……

Limit for conventional

computational approaches?

Think big data….think parallel!

Where do scientific problems fit into this scheme?

HAPPY 50 condition……th Birthday, Chaos Theory!

Is this a tree, or a forest?

COURTESY: Advanced Tree Generator,

OpenProcessing

http://www.openprocessing.org/sketch/8941

HAPPY 50 condition……th Birthday, Chaos Theory!

I have infinite subsets!

COURTESY: Advanced Tree Generator,

OpenProcessing

http://www.openprocessing.org/sketch/8941

HAPPY 50 condition……th Birthday, Chaos Theory!

I have infinite subsets!

LESSON: sometimes the forest is

composed of trees (of course!)

CORROLARY: sometimes that

forest is chaotic!

COURTESY: Advanced Tree Generator,

OpenProcessing

http://www.openprocessing.org/sketch/8941

The End (or is it?) condition……

Mobius Strip (surface with

no beginning and no end)

The End (or is it?) condition……

Mobius Strip (surface with

no beginning and no end)

Douglas Hofstadter, Godel, Escher,

Bach: an eternal golden braid (1979).