> Evolution has had billions of years to do it, and for whatever reason the conclusion is that either it's not possible, or the cost is not worth it. I don't th

> Evolution has had billions of years to do it, and for whatever reason the conclusion is that either it's not possible, or the cost is not worth it. I don't think we are smarter than evolution, in this regard. I think the reason this isn't a pretty solid argument for its infeasibility is that evolution optimizes for different things than we might choose to.