John Carmack works on cutting edge technology, so he embarks on things that are already difficult and the answer is not known ahead of time. Now if you are talk

John Carmack works on cutting edge technology, so he embarks on things that are already difficult and the answer is not known ahead of time. Now if you are talking about deadlines, then sure. It can be intuited if the deadline is unreasonable. There are problems out there where the answer isn't known or even close to being known without significant effort. A "Do-er" in the case is valuable because they are willing to go the distance to try things. Though I will say, its unclear why an educated person cannot also be a Do-er. Those are two independent variables IMO. I would say I'm a Do-er and I got educated so I could "do" more.