I can't imagine 4D space

>I can't imagine 4D space

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>I'm pursuing a Ph.D

>not realizing we live in 4D space

I can't imagine 5d space.

Easy, just imagine an n dimensional space and then set n = 5

Well, let's see.

>1D is a point on an x axis. A visual for this would be an infinitely thin line.
>2D is a point on an x and y axis. A visual for this would be a flat square.
>3D is a point on an x, y and z axis. A visual for this would be a 3D cube.
>4D is a point on an x, y and z axis, and at a certain time. A visual for this would be a cube sitting on a table at 4:35PM.

So there you go.

>space

...

4D = 3D (x,y,z coordinates)+1D (colour)

That's just time as a concept, isn't it? Just think of a plant growing or a sun going down.