When you design something concrete, you have to make choices on lots of things that you don't really care at that time, but the choice may haunt you later. I t

When you design something concrete, you have to make choices on lots of things that you don't really care at that time, but the choice may haunt you later. I think your point is that too much knowledge may hinder your view. That's certainly something you should watch; but in general, I think risk of making bad decision from ignorance is greater.