Your question is loaded in a different way than you might have anticipated, it presupposes that truth DOES come from psychedelics as well as from reason.
It's true that many people feel a deep connection to and understanding of consciousness during a psychedelics trip. Did they actually gain any knowledge about how their own brains work in the same way that a neuroscientist or ML expert might understand it? I contend that they did not, even if they feel that they did.
In a similar way a drunk might suddenly feel that he has the ability to dance. That's hardly a replacement for salsa classes.
Of course there are exceptions. Many brilliant people take psychedelics and credit them with breakthroughs in their fields, that can't be ignored. But you'll notice that its always _in their field_, ie they were already thinking about a problem and psychedelics offered them a new perspective.
It's true that many people feel a deep connection to and understanding of consciousness during a psychedelics trip. Did they actually gain any knowledge about how their own brains work in the same way that a neuroscientist or ML expert might understand it? I contend that they did not, even if they feel that they did.
In a similar way a drunk might suddenly feel that he has the ability to dance. That's hardly a replacement for salsa classes.
Of course there are exceptions. Many brilliant people take psychedelics and credit them with breakthroughs in their fields, that can't be ignored. But you'll notice that its always _in their field_, ie they were already thinking about a problem and psychedelics offered them a new perspective.