I'm wondering now when the time comes that we are last to the last few thousand coins do you guys think that adding POS proof of stake will actually work for bitcoin, it would at lease save a lot of power energy when it comes to that.
It probably won't work and will never happen. Firstly, switching from POW to POS would require a hard fork which is a hassle for everyone to do. Secondly, POS requires much less power to attack than POW and those who have ASIC would probably be useless. Thirdly, POW allows everyone with an ASIC/Computer to mine whereas in POS, you require coins. Monopoly can happen with huge exchanges or gambling site and majority of the latecomers won't be able to mine.
