How to memorize the Option key ⌥? I wonder if there is a good way to memorize the Option key ⌥.  I almost always think of it as the Shift key, because it looks like a lower level and a higher level (the small hyphen elevated).

Or maybe a way to memorize it better is, what is the shape of this symbol for?  I mean, what does it represent symbol wise?
Weird/cool question!

I think I went through a similar thought process at one point: the way I think of it is like a set of train tracks. The train enters at the left and reaches a fork or split, giving it the option of the upper or lower path to the right. In the glyph, the tracks are set for the lower option.

Shift does have its own glyph: ⇧, which can be remembered as pushing the case of the typed letter up.