"My instincts tell me there is something like Twitter but better that is still undiscovered." ~ Paul Graham
Lucas Meadows stashed this in Twitter
Meaning what, exactly?
That there could be a site where users broadcast information about their activities and interests, which is better-designed / more engaging / more profitable than Twitter?
Hardly a bold statement. It's actually a very weak and uninteresting statement, because the alternative is to assert that Twitter is the finest social/sharing experience that could possibly ever be developed.
Perhaps he is fishing to see what people come back at him with.