Of course! I have to presuppose that we share the same language, that the laws of physics won't shift and turn the atmosphere into spiders suddenly, that typin

Of course! I have to presuppose that we share the same language, that the laws of physics won't shift and turn the atmosphere into spiders suddenly, that typing won't suddenly introduce poison into my bloodstream and thereby be a lethal mistake, all KINDS of things. Dealing with other people brings ethics and such into things, and that's the highest level of philosophy.