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  1. I actually find this representation of the tesseract, or the so called 3D shadow of a 4D cube, **quite** confusing and actually a bad example for it.

    IMHO, it is much easier to just have a 3D cube, which you expand, but remember all the in-between steps. This would be seeing the expansion through time, which would, in fact, be 4D. The OP’s example really is quite estetic and interesting, but hard to understand. I guess you could kinda see it as a cube that is moving forward, but streching and shrinking would be more intuitive, I think.

    I understood the 4th dimention already quite young, but this always bothered me, until it blew my mind that it’s in fact quite simple and something I’ve already known for a while.

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