[marcosdumay]

So, it's obvious that if there were some people much smarter than the ones working on the Manhattan project, they wouldn't be able to improve it on any reasonable way?

I could maybe agree that it's true, but I really don't agree that it is obvious, and don't agree that it generalizes to all less demanding projects done by less capable people. It probably is true for a lot of things, but claiming it applies to all seems ridiculous.