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After all, we're used to computers whose CPUs have been carefully engineered,
with millions of gates.

It seems bizarre that we should be able to achieve universal computation with
a machine as simple as the one above--that we can find just by doing a little
searching in the space of possible machines.

But that's the new intuition that we get from NKS. That in the computational
universe, phenomena like universality are actually quite common--even among
systems with very simple rules.

It's just that in our normal efforts of engineering, we've been too
constrained to see with such things.