[temporalparts]

Nature rarely* refactors. Sometimes random mutations refactors, which leads to efficiencies which leads to evolutionary advantages.

If nature doesn't refactor, then why are there so many crabs?

[xeonmc]

Clearly refactored for memory safety.

[stult]

Hence C laws

[dtech]

There are many crabs because of convergent evolution, in this analogy that has nothing to do with refactoring. That is more similar to competing products having a lot of the same features.