It seems to me that “I’m a Bolzmann brain” is exactly the same sort of useless hypothesis as “Everything I think I experience is a hallucination manufactured by an omnipotent evil genie”. They’re both non-falsifiable by definition, unsupported by any evidence, and have no effect on one’s decisions in any event. So I say: show me some evidence, and I’ll worry about it. Otherwise it isn’t even worth thinking about.
It seems to me that “I’m a Bolzmann brain” is exactly the same sort of useless hypothesis as “Everything I think I experience is a hallucination manufactured by an omnipotent evil genie”. They’re both non-falsifiable by definition, unsupported by any evidence, and have no effect on one’s decisions in any event. So I say: show me some evidence, and I’ll worry about it. Otherwise it isn’t even worth thinking about.