Time IS NOT the 4th dimension

You don't have to be able to travel along a dimension freely for it to count as a degree of freedom. For example humans can't move along time freely but it still counts as one of our four degrees of freedom.

I mean there was that one lady who was able to intuit 5th and 6th dimensional shapes if I recall correctly. Humans believe and envision lots of impossible things, like you ever getting a girlfriend.

Yeah, no she couldn't. It's easy to model them mathematically, but imagining them is literally impossible.

It is just a perspective projection of a wire-frame form 4D to 3D

Imagine you had a wire-frame 3D cube above a flat 2D surface and held a light source above it to project the shadow of the cube onto the surface.

Add color and it is possible
Your eyes already do this (binocular vision actually gets you to 5D)
Vertical, Horizontal, Hue, Brightness

Useful for functions from C to C

en.wikipedia.org/wiki/Complex_analysis

the order of the pole or zero is represented by how many times you cycle through the color wheel when winding around (note that poles cycle through the color wheel in the opposite direction of the zeros)

It's possible to imagine differently colored three dimensional objects, it is impossible to imagine a four dimensional object. Your brain simply doesn't work like that, you might as well try to imagine a married bachelor.

Analogy to knot diagrams
"where does the string go when it disappears then reappears?"

Maybe >Your brain

>HURR I'm capable of literally impossible things!

Sure you are sweetie.

It's like hearing a blind person tell a sighted person that "seeing" doesn't exist because they, themself, cannot see.