[stephengillie]

This article ends disappointingly in a series of mental exercises. The "LCD" involved is the 8-shape commonly used in LCDs to allow any digit to be displayed. There is no discussion about how light traversing a liquid crystal display illuminates time's arrow, nor the change undergone when a liquid crystal is electrified.

[0xdada]

I'm also not sure why LCD is used as the example. Wouldn't a cellular automata (or a simplification of one) be a better example here?

[jerf]

That is a cellular automaton, whether or not they call it one.

[raverbashing]

Probably because most people know of an LCD display (including Physicists), as opposed to a celular automata