As an outside observer, I got to a point where I could usually tell which days they were microdosing. The biggest tell was that their self confidence went up significantly. They would consider routine accomplishments to be great achievements. They would have an increased sense of wonder after even basic realizations. If anything, their actual problem solving abilities were diminished or at least slowed on those days.
All but one of them eventually discontinued it, realizing that it was doing more to distort their perceptions than actually improving themselves. One has unfortunately continued with increasing doses over the years to try to chase the early feelings. He’s reaching a point of delusions of grandeur and he’s accumulating a lot of weird pseudo-religious ideas and theories. It’s very concerning.
I have no doubt that micro dosing changes how people feel about their own performance after watching this play out over several years, but I’m far from convinced that it actually has a direct effect on improving learning in the ways the influencers are claiming. I could see how altering self-perceptions could improve confidence enough to make someone perform differently, but I have some serious doubts about the drug actually improving cognition or learning.