Super conductors at room temperature

I read this very interesting post about the new supra conducting material that actually works at temperatures above the lowest of what have been sighted on earth.

Now that got me thinking, as they speculate in the article, maybe one could have something actually working at temperatures around 20C, where we operates. But then I thought, but wait, if such a material exists, shouldn't evolution have found it by now?

Well maybe not? Then I asked my self, what we expect evolution to find? That is an extremely interesting question. If we can parameterize the space we can expect evolution to have found optimal solutions in, we can stop searching for stuff there. That would be something awesome,   no?