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hannahelisabeth comments on Dissolving the Question - Less Wrong
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Robin: So when you have the impression you are done, you are not necessarily done because some have this impression without really being done. But then when you are really done, you won't actually know you are done, because you will realize that this impression of being done can be misleading.
You'd think it would work that way, but it doesn't. Are you awake or asleep right now? When you're asleep and dreaming, you don't know you're dreaming, so how do you know you're awake?
If you claim you don't know you're awake, there's a series of bets I'd like to make with you...
As usual, this is better settled by experiment than by "I just know". My favourite method is holding my nose and seeing if I can still breathe through it. Every time I've tried this while dreaming, I've still been able to breathe, and, unsurprisingly, so far I've never been able to while awake. So if I try that, then whichever way it goes, it's pretty strong evidence. There — now it's science and there's no need to assume "I feel that I know I'm awake" implies "I'm awake".
Of course, if you're the sort of person who never thinks to question your wakefulness while dreaming, then the fact that you've thought of the question at all is good evidence that you're awake. But you need a better experiment than that if you also want to be able to get the right answer while you actually are dreaming.
[Apologies if replying to super-old comments is frowned upon. I'm reading the whole blog from the beginning and occasionally finding that I have things to say.]
When I dream about being underwater, I can breathe in the dream, but I also am under the impression that I'm holding my breath somehow, even though I'm breathing. Like, I'll "hold my breath" only, I've just made the mental note to do it and not actually done it. But it won't be clear to me in the dream whether or not I'm holding my breath, even though I'm aware that I'm still breathing. It's weird and contradictory, but dreams are capable of being like that. It's like how in a dream, you can see someone and know who they're supposed to be, even though they may look and act nothing like that person they supposedly are. Or how you can be in both the first and third person perspective at the same time.
Heh, I've recently had a few weird half-lucid dreams, where on some level I seem to know that I'm dreaming, but don't follow this to its logical conclusions and don't gain much intentionality from it... In one of them, I ran into a friend I hadn't seen in a long time and later found he'd left something of his with me, and I wanted to return it to him. So I thought I'd look him up on Facebook and message him there; but, I reasoned, this is a dream, so what if that wasn't who I thought it was, but just someone else who looked exactly like him? So I felt I'd rather avoid going that route lest I message him and then feel foolish if it did turn out to be someone else, somehow accounting for this aspect of dreams but not noticing that this being a dream meant there was no real social risk to me and no pressing need to return his property in the first place. (Also kind of amusing that in retrospect he actually didn't look that much like the person he was supposed to be, yet in the dream I was able to know who he was while wondering "what if that was someone else who just looked like him?".)
Last night I had a dream which for some time rendered reality in aerial view as a sprite grid resembling old Gameboy RPGs, including a little pixel character who I knew was me.