The concept of the "four-year cycle" in the cryptocurrency circle must be completely abandoned in order for cryptocurrencies to truly cross the death valley and enter a new stage. As long as the concept of the "four-year cycle" exists, the default incentive mechanism will be to: prioritize short-term behavior (whether as a builder or investor) (in the bull market cycle), and spread the "fool theory" because people will always believe that the current cycle will eventually end.