On December 2nd, the chain heard the news. At the Ethereum Developer Conference, some people proposed a hard fork at a block height of about 9.2 million to remove the difficulty bomb, which is expected to occur around January 6. According to the data of the developer in the discussion group, the block generation time of Ethereum will continue to increase until the difficulty bomb is removed, and it may reach 25 to 30 seconds by January 6th. According to Etherscan, Ethereum In the history of the square, there was a long 30-second block production time around October 2017. In addition, the Ethereum's Stanbul upgrade is scheduled to take place on December 7, a month before the hard fork of this proposal.