or "intelligent design," we have features we don't need yet but are there for when we need them?
It's one thing to say we have the capacity for features that don't arise very often, or that have value in extreme circumstances.
But to see features encoded for situations that could not be foreseen at all?
That is more than intelligent design, that is crystal ball design.
Reminds me of the overuse and misuse of the term Black Swan.
It's partly about an exceedingly rare event that only comes along once every 10,000,000,000 years. (but you are aware of it. e.g. there was a big stock market crash in 1929 (and had been bubbles and crashes before that) and so certainly there could be another one in 1987 or ....pick your year).
But it's about something that you did not even realize existed. It was in the blind spot.
The use of the swan is maybe not the best example, because if there are white swans, certainly there could be brown, gray, black, even purple swans.
I think that is where people get off track with the idea.
Maybe the better way to see it is in the military language of knowns and unknowns.
You have known knowns and known unknowns.
But then there are unknown unknowns.
That is where the greatest dangers lie from a military standpoint, and maybe the greatest opportunities too, if you have an appetite for risk and a great analytical framework to handle it when the unknown unknown emerges.