[…] high-pitched kewick, which, however sharp it may sound, is a sociable sound in owldom.
The new CA is a modification of Fredkin's earlier SALT architecture in which every cell is identified as either even or odd - as in sodium and chlorine in a salt crystal hence the name. The state of each cell is either up or down and the development rule simple takes account of states of odd and even neighbours. The up-date at each time step simply takes the form of a swap of the states of diagonally related cells. SALT CAs are reversible and capable of universal computation and are conjectured to be capable of universal construction in the sense of Von Neumann.
Pize on 'em, they never think beforehand of any thing;—and if they commit Matrimony, 'tis as they commit Murder; out of a Frolick: And are ready to hang themſelves, or to be hang'd by the Law, the next Morning.— […]
show of force
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