For me the "movement" part is basically my mind trying to process 2D object in 3D space. They "jump" because somewhere back there, my mind is trying to show me

For me the "movement" part is basically my mind trying to process 2D object in 3D space. They "jump" because somewhere back there, my mind is trying to show me what the glyph would look like if it was in front of me floating. This is why b and d are hard, etc. Sufficed to say, mine is nothing like this website.