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Uncoiling the spiral: Maths and hallucinations (maths.org)
54 points by msvan 5 months ago | hide | past | web | favorite | 3 comments

Fascinating stuff. I've often thought that the nature of hallucinations - geometric or otherwise - must have lots to tell us about the workings of the brain. From a mechanistic viewpoint all our experiences (hallucinations included) supervene on brain structure, therefore these common geometric hallucinations likely reflect some fundamental structure of the brain.

On a related note, here's an interesting article from 2015 about encrypting information so that only people who are on LSD can read it: https://qualiacomputing.com/2015/05/22/how-to-secretly-commu...

Probably deserves a "2009" in the title. The 2015 HN discussion had only one comment, but that comment had an interesting link.


"But it's not just hallucinogenic drugs like LSD, cannabis or mescaline that conjure up these geometric structures."

The article seems to be interesting, but this start turned me off a bit, as it is wrong. Cannabis is not hallucinogenic. When you get hallucinations from cannabis, then you might have a problem called psychosis...

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