Agreed, there are lots of them out there and you do not get to see all surviving. In the same way sometimes are being mined already. It is a competition, the weakest would be eliminated and only the survival remains. What those who remain did should be done by those at the peripheral. Not all coins would survive, those that will survive have already upped their game. And talking about survival, this is not a ponzi scheme, if it were, it would have died a long term ago. And if it would, just a few coins here and there.