Interesting article. Moreso for me as this is perhaps the one topic around here i have some first hand experience with. That feeling is really really odd though. There's a moment when you go "wait, that's an apparently fully functioning consciousness that is capable of responding to my every thought, my brain/reality can DO THAT?". For me it took a long time to play off the many different possible solutions to that p…
It is basically the same question as "how does the brain conjure dream", i guess. But experienced from the awake state. And it just stays with you in a slightly different way when you experience it whilst awake.
I guess i'll never know.