For me, an idea is very thorough and well thought out. The execution is then trivial, except for publicity and other stuff that's really hard to control.
Ideas are far from worthless. I'll give anyone $2000 right now for a good idea that investors like enough to get me out of this near debt I'm struggling through.
Could have fooled me, but what do I know. I swore off investors for a while last year after my partner quit and things were looking bad.
1. I'm not in debt.
2. I'm not looking for investors.
Investors don't fund people from what I've seen. Most fund based on the past experience of the people, how much they like them, how well they can pitch themselves. But investors rarely actually fund based on the people.