How can we know what a four dimensional object looks like?

Question

So i recently saw how a cube would look like in 4 dimensions (Tesseract) but how do we know what it looks like if we live in a 3 dimensional world?

In: 2

Answer 1

A Terrasect is just a 3d representation of what 4 dimensions would look like. The 3d cube exists in all radius pointing out to the outer cube in the 4 dimension.

This isn’t the best example, but an easier representation might be to use time as a forth dimension. Imagine yourself standing exactly where you are and waving. If you existed in the forth dimension (time in this instance) you would be standing there in that same location waving for all moments in time past, present, and future.