bitcoin is maintained by core developers, would Bitcoin die a natural death if the developers no longer exist? Or if they stop maintaining/developing/upgrading the system?
Well if bitcoin wasn't maintained by core developers. the bitcoin network will die even if there are users of bitcoin they need to maintain the server of the bitcoin network in order to us to keep connected to the network. and also if the devs stop upgrading the system which always do, the system will be breachable by hackers, and insert a virus or a code that can make serious problems. so, bitcoin will die without the devs maintaining it.