I feel like I understand communist theory pretty well at a basic level, and I believe in it, but I just don't see what part of it requires belief in an objective world of matter. I don't believe in matter and I'm still a communist. And it seems that in the 21st century most people believe in materialism but not communism. What part of "people should have access to the stuff they need to live" requires believing that such stuff is real? After all, there are nonmaterial industries and they still need communism. Workers in the music industry are producing something that nearly everyone can agree only exists in our heads. And they're still exploited by capital, despite musical instruments being relatively cheap these days, because capital owns the system of distribution networks and access to consumers that is the means of profitability for music. Spotify isn't material, it's a computer program. It's information. It's a thoughtform. Yet it's still a means of production that ought to be seized for the liberation of the musician worker. What does materialism have to do with any of this?
And it has been repeatedly proven that I respond to science fiction with more intensity than soap operas. All you have identified is that our perceptual interface is more compelling than thoughts of our conscious creation, not that our perceptual interface comes from outside the mind.
I don't find Hume's thought experiment as compelling as you do. If I accept your premise that senses are required for sensation, that still does not mean senses must be directed at the world. They could also be directed at other conscious agents, or at parts of the self.
Sure, but if we were to abolish the social construct of reality, communism would still be plenty possible and the best way of doing things.
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