Quote from: pooler1122 on August 02, 2014, 11:49:18 PM

After POW end , generate last POW block , then should be generate POS block , why Pos do not work , just stay on last POW block ?

who know what reason ? and how to fix ?

Assuming you are talking about Bitcoin, Bitcoin will continued to be mined using hardware SHA256D forever. They rely mostly on transaction fees to earn from the blocks when the block rewards get smaller. POW algorithm is coded into Bitcoin by satoshi, it will never be changed unless you hard fork the network which would require all of the client to upgrade and accept it. Exchanges can monopoly Bitcoin if it is operated by POS as they own a huge amount of coins therefore, most of us disagree to move to POS. Correct me if I'm wrong.