[sublinear]

The fundamental issue is that regardless of how common ignorance is, you risk failure.

You're correct it's not the end of the world, but you'll need to catch up quick once you realize something and maybe even completely rethink plans. This isn't always a bad thing and the stuff you come up with from ignorance might be useful in other ways.

In my opinion, ignorance is just a fact of life. Too much of it can be a disaster, but just enough can spark meaningful creativity. Often times though, it's just something to immediately move on from because you have way more other stuff to do.