A post by Sean Riley
Brains are weird. And minds are super confusing. Some people are just out there minding their own business, and then bam! Hallucination. Something is there that isn’t actually there, and that’s weird. Incredibly debilitating and tragic, yes, but also weird. Even weirder is that we can do this intentionally. You, right now, can sit pensively in your favourite chair and ask, “What would a giraffe in a necktie look like?” And you can hem and haw and conjure a giant giraffe in your mind, wrapping the latest fashion around its neck, just below the jawline, only to take a moment’s pause and go, “Wait a second, that doesn’t look right...” So you quickly slide that tie straight down to the bottom of its neck, just like God intended. That’s super weird. Not the fashionable giraffe part, the other part. The seeing part. Surely there aren’t tiny giraffes chilling in your mind, so what are you actually seeing? And why does it all look just a little bit “off,” if that is even the right word. Imagery just seems different from perception in some way, and it’s difficult to say what that way is. Vividness appears to play a role in this (e.g., Kind, 2017), but what even is vividness? In many respects I think vividness is kind of like knowledge: we know it when we see it, but it’s a nightmare to define. So let’s take a swing at it and see what happens to fall out.
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