Is life a form of computation?

I don't see the point of asking this question. Like, sure, all physical systems follow certain rules, so any such process will develop in a way that it look like a computation of an algorithm. Also, evolution itself is constantly optimizing organisms to best adapt to their environment, just like a computation.

So asking if life is a computation seems mostly like a semantic musing. Define "life" and define "computation", then see if they're the same.

> Also, evolution itself is constantly optimizing organisms to best adapt to their environment, just like a computation.

There is no optimization, if organisms can reproduce, they'll continue to exist. That does not mean they are the "best adapted" or on a trajectory toward better adaptation.

It's entirely possible for a germ line to become less fit over time, even to the point of extinction, and that's still evolution. Time has shown that is the case for most germ lines.