Bitcoin developer gmaxwell disagrees: https://news.ycombinator.com/item?id=6798997 https://news.ycombinator.com/item?id=6798997 > In PoW when you attempt to mi

Bitcoin developer gmaxwell disagrees: https://news.ycombinator.com/item?id=6798997 https://news.ycombinator.com/item?id=6798997 > In PoW when you attempt to mine you must expend energy and so you should only mine on a consensus which is likely to be the surviving one if you want your work to not be wasted. In PoS the same is not true, and an optimally rational PoS miner will attempt to concurrently mine all forks which he does not hate. > Originally the signed blocks in PPC were supposed to be a bootstrap mechanism until most of the mining was PoS based, but then some clever miner started mining many possible histories and finding ones where he magically got lucky and his coins were the selected stake for all the blocks.