That might be accurate, though I don't know your sources. I experimented with LSD in my 20s (53 now), and it was fun, but after a few trips, it had shown everything it could show me. I get better results from lucid dreaming now.

My trips were always "good," but the novelty wore off, and it keeps you up all night. I even wrote a poem about it...

LSD-25

Lysergic Acid Diethylamide;
Ah! THAT one's mysteries I have oft plied.
I tried it the first time, at twenty-five,
But since that time its allure has declined.

That morning at dawn by the lake's sandy side,
The white spots swimming around in the sky
Were merely leukocytes within my eyes!
(You really, by its grace, CAN look inside.)

Pardon the 18th Century style and scientific terms. That was intentional...