I think I'm a thinker, but there is a temptation to keep thinking and not doing. So often it feels wrong to start because I feel guilty that if I think a little more it could be better.
But if I keep thinking I never get anything done. If Alexander Graham Bell kept thinking about how the phone could be the iPhone, he wouldn't have made the archaic tube-and-wheel-looking device that he created.
Without his archaic creation, we wouldn't have the iPhone.
My point is that Bell wasn't in a position to create the first smartphone so he went ahead and made the first phone. That was good enough and he'll always be remembered for it.
We need to be okay with creating the wheel instead of just dreaming about building a car. Do the doable.