@cynicalmood I'm curious whether you've run a startup? How long would you go without an income (if that's the "whatever" you're referring to) even if you believed in the vision?
I agree with @cynicalmood that if you don't know what it takes to pull this thing through, don't trick the users into believing you're have got solid plans. Experimenting is always fine as long as everybody involved is on the same page.