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Re:Real-time dialogue between experimenters and dreamers dur... by mellosouls on Saturday February 20, 2021 @09:37AM (#26204370)
As it appears to be a phenomenon almost exclusive to the very young, expansion to the general population seems unlikely as that implies biological constraints.

https://onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2869...

Note the study itself is limited to under 20s but shows a clear age-related decline.

My own anecdotal experience (which I agree, was awesome) confirms that.

Re:Real-time dialogue between experimenters and dreamers dur... by 3dsynd on Tuesday February 23, 2021 @06:41AM (#26236162)
Maybe because people for ~20 years have less sleep hygiene?