one of the biggest philosophical differences between bitcoin (satoshi) and ethereum is how ambitious the devs are satoshi believes that - it’s already good if bitcoin can create a free cyberspace for the world for certain period of time - as long as bitcoin can be useful people will just run bitcoin ethereum core dev (bitcoin security researcher) believe that - ethereum needs to be a forever free cyberspace (very ambitious) - therefore we need to pay it sustainably and tweak it constantly - we can pay security for significantly less by switching to pos(Zeng Jiajun 曾嘉俊)