Update: Just found https://community.samharris.org/c/general/self-is-an-illusion-and-this-will-make-you-feel-it proposing roughly the same argumentation and same conclusions—and leading you nicely up to it with a few small thought experiments. Not really surprised somebody else also came up with it independently: It really is such an obvious point even if it is all set up for it to feel totally impossible.
Update: Just found https://community.samharris.org/c/general/self-is-an-illusion-and-this-will-make-you-feel-it proposing roughly the same argumentation and same conclusions—and leading you nicely up to it with a few small thought experiments. Not really surprised somebody else also came up with it independently: It really is such an obvious point even if it is all set up for it to feel totally impossible.