solution to the optical illusion question from earlier
this is called mach bands. earlier, i asked if you can see the illusion and you all failed (nerds without se! what to expect...) no, i couldn't either. i keep googling until i found some video finally explaining what the supposed illusion was.
so, between (1) and (2), it SEEMS like there's a one pixel border, darker than the (1) itself. but in reality there's no such thing and that's our brain/optic nerves and whatever else "enhancing the difference".
if you focus really hard, you can also "see", a one pixel border, lighter than the (2) itself.
so basically, our optic system makes the very edge of (1) darker and (2) lighter. kind of like comic outlining.
so i thought hey, istp should be the best type to see this with strong se and ti logical focus.
the whole thing, if you really focus, also can seem like "slightly plucked upwards" where the bands connect. so it's kind of like we are looking at this thing from above. but if we were to look from side then we would see something like this:
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