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Re:Perceptual Illusions (2018) by zabzonk on Thursday August 26, 2021 @02:03AM (#28311218)
These were all great. I have a question on the Tube train one though - as someone that has lived over 20 years of his life in London, a lot of them using the Tube, why don't I ever perceive actual Tube trains as going backwards? Or indeed ordinary mainline trains?
Re:Perceptual Illusions (2018) by Shraal on Thursday August 26, 2021 @03:21AM (#28311632)
I suspect that the illusion/gif is ambiguous because it's made of just two repeating frames. A "smooth" version of it with more frames would reveal the real direction of the train.
Re:Perceptual Illusions (2018) by arc-in-space on Thursday August 26, 2021 @04:45AM (#28312232)
Because you can see lot more than like... 3 frames or whatever it is that gif has; plus you have other cues, like the wind, sound, ground vibrations.