Reply to Re: Psychic powers.
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Both of those ideas (brain malfunction and information leak) don't really have any direct support. Although the first one is probably our best guess to explain deja vu and the second our best guess to explain synesthesia. Although I don't know about the details (i.e. eye signals being read slow? I think you mean multiple pathways, one slower than another, so when they unite the brain interprets them as happening at different times?)
I think the first description of deja vu actually explained it as misinterpreting current perception as a memory.
Anyway, with 'psychic powers', scientists do actually study them. Most of these questions can be answered by science (i.e. careful experiments can be done to test them), and have been answered. There is no robust psychic effect. There is also no mechanism in physics that could explain them.
I think the first description of deja vu actually explained it as misinterpreting current perception as a memory.
Anyway, with 'psychic powers', scientists do actually study them. Most of these questions can be answered by science (i.e. careful experiments can be done to test them), and have been answered. There is no robust psychic effect. There is also no mechanism in physics that could explain them.