[bananabiscuit]

Protein folding is Turing complete because it can simulate a Turing machine by folding itself into a homo sapien, taking computation theory in college, and stepping through a Turing machine with a pen and paper for homework.

[kian]

I love this response. On a slightly smaller scale, there are also ideas of protein interaction-network computational 'circuitry' -- I think that showing that folding can also compute is a nice addendum to this.

[grow2grow]

Thank you for this excellent example, which I'll be using when defending my unpopular opinion that Occam's razor is nonsense.