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Week 2: The grid and emergent behaviour

https://www.researchgate.net/figure/Cellular-automata-and-state-transition-function_fig1_220164540

This week we are going to bump the dimensions of our systems and talk about how simple rules can produce unexpectedly complex, structured and hard to predict behaviour. We'll have a quick overview on the academic history as well as some useful nomeclatures to compare and challenge classic approaches to Cellular Automata.

The Grid

On elementary cellular automata the state is represented on a unidimensional space (1D). A bidimensional image (2D) can be created by stacking the state over time.

A common way to picture cellular automata is to visualise the state on a 2D squared grid.

Cellular automata can operate on multi dimensional state space, shapes and neighborhoods. A brief history of Cellular Automata.

Although, in theory, computation can be achieved on elementary cellular automata, most of its practical examples occur on 2D space.

Emergent Behavior

A lot of possible cellular automata will generate either empty, repetitive or chaotic patterns. A lot of attention has been given at the edge of chaos.

Cellular automata are a great way to visualize how complex behavior can emerge from simple parts and rules.

Questions

An animation can be made by displaying the 2D grid spaces as frames. A sculpture can be made by stacking the 2D grid spaces as layers. What else?

What’s up with the fixation about universal computation?

Proposed Activities

Homework Proposal

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