I suspect that they're right for certain brains on certain types of LSD, but as someone who once had a pipeline to the stuff, there are many different formulations that produce dramatically different effects.
Distinctly, I remember watching Mars Attacks in theaters (which should date the experience) on what was promised to be a "special" blend... how it was special, I have no idea, but the visualizations were very unique.
In lieu of the strobe effect this article discusses, everything instead morphed. When someone turned their head, for example, my eyes (brain?) saw their head briefly in both positions (with no gaps), and then they morphed from the first position into the second position, its path being trailed by a ghost of their heads.
It was unique, different, and I've never had another experience like it. Perhaps there was something in the mix that wasn't purely LSD, I honestly don't know, but from my (admittedly naive) understanding, not every trip produces the same effects as every other.
I mean "types" more like I might say "types of water". Sure, there's only one real water, and whether there's lemon added, or if it's filtered through limestone, it technically bears a different configuration (now making it water with lemon, or water with limestone).
That said, LSD is (to my experience) rarely concocted at pharmaceutical grade. Different concentrations, different configurations, different additives lead to different outputs, each of which we might all refer to as LSD colloquially, but which are all effectively "water, with a hint of lemon", or whatever else, moreso than LSD-25 vs. something else.
There are not many chemicals active in the μg range, let alone when they are only present in traces.
With psychedelics dose and unknown environmental and psychological factors can lead to different effect, so there is no need to speculate about a different chemical composition.
I'd be careful when talking about 'different kinds of LSD' because while there are indeed various other Lysergamides that produce analogues effects, most of the time you are more likely to get something that is not LSD at all (e.g. NBOMe) when talking about 'different kinds' of LSD.
Distinctly, I remember watching Mars Attacks in theaters (which should date the experience) on what was promised to be a "special" blend... how it was special, I have no idea, but the visualizations were very unique.
In lieu of the strobe effect this article discusses, everything instead morphed. When someone turned their head, for example, my eyes (brain?) saw their head briefly in both positions (with no gaps), and then they morphed from the first position into the second position, its path being trailed by a ghost of their heads.
It was unique, different, and I've never had another experience like it. Perhaps there was something in the mix that wasn't purely LSD, I honestly don't know, but from my (admittedly naive) understanding, not every trip produces the same effects as every other.