It's an interesting concept, but the setup takes away a lot of the incentives that drive people to not have a life for months on end so they can succeed. If a venture succeeds, the people who actually did it only get a fraction of the payoff. If they don't succeed, everything's still okay since they can wait for someone else to succeed and still see a payoff.
If everyone's waiting for another venture to succeed, they're not trying as hard to make theirs succeed.
If everyone's waiting for another venture to succeed, they're not trying as hard to make theirs succeed.