I don’t think you’ve shown this. It’s more plausible to me that Xrisk is a top tier intervention and rationality and the ‘mindset-changingness’ of psychedelics are in the lower tiers. This would still make them potentially very interesting from a long-termist perspective...
Being in the same tier as rationality interventions is basically what I meant by “being in the same ballpark,” though my language wasn’t very precise.
Also I’ll note that “x-risk intervention” is a pretty loose category:
Doing agent foundations research at MIRI? Definitely an x-risk intervention.
Doing AI safety work at OpenAI? Definitely an x-risk intervention.
Doing AI development work at OpenAI? Maybe that’s an x-risk intervention, though not totally clear how doing AI dev at OpenAI is different from doing AI dev at a FANG company.
Doing AI policy work at CSET? Sure, that’s probably an x-risk intervention, though really what CSET is trying to do is influence policymakers’ opinions about AI (which seems pretty similar to CFAR’s mission, though the target market is different).
Leading rationality workshops at CFAR? In the taxonomy you gave, CFAR is outside the category of “x-risk interventions,” though it’s plausibly doing stuff aimed at x-risk reduction in the same way that e.g. CSET is doing stuff aimed at x-risk reduction.