/sci/ - Science & Math

>>16163657
>things are as they appear to be
how naive

>>12628114
meow
>>12628052
You can also see and use them with the "Keyboard Viewer" (used to be an app called Key Caps).
Mac alt-key stuff dates all the way back to 1984, and aside from not having alt-###, it's absolutely superior to anything Windows has ever had. (alt-### was in the DOS BIOS)

Is "beer goggles" an optical illusion

What you see is mostly constructed by your brain, like in a dream. Your eyes actually relay very little information to your consciousness compared to the massive field of vision that you interpret.

It's actually a lot like a lossy algorithm in that regard - the information that travels through your optic nerve is mostly about contours (abrupt changes in value) and your brain uses learned algorithms to fill in the rest of the data.*

What optical illusions do is go against the algorithms that your brain uses to fill information gaps. Your brain is expecting something to look a certain way based off of the information given to it, but is given conflicting information on how to fill that data.

*"data" and "algorithms" aren't really technically correct terms to use here because brains aren't computers and don't actually work like computers do, but as an abstraction they are good enough to use in a short explanation like this.