- Summer is salad time Here's a nice bowl of greens based on another
recipe from Kellie Evans' Larger than Life investigations. The rule is
range 2 Box with birth and survival windows [9,16] and [9,20],
respectively. In this case, starting from a 50-50 mix of occupied and
vacant states, the system first self-organizes into gurp, but then
small patches of horizontal and vertical stripes begin to nucleate, very
slowly displacing the gurp until a tasty salad (227K) is achieved.
- We have selected a cyclic palette of 200 shades of green for the level
set representation of these dynamics after several thousand updates, about
half way towards a final state. The bright lattice lettuce of fixed patches
appears on a periodic background of gurp in darker shades of green. Close
inspection reveals horizontal and vertical stripes of the darkest shade (0's)
within the salad, defining the orientations of its two phases. The variegated
vegetative effect is a consequence of two factors: a very slight competitive
advantage for the lettuce over the gurp, and the rather large correlation length
of the gurp which gives rise to dramatic fluctuations in the ability of the
lettuce to manifest its advantage. The result is a crisp, succulent,
refreshing texture. And so good for you!
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