![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
Struggling with some 4D stuff here again - what does a 4D sphere look like in 3D? A sphere that grows and shrinks over its time duration/dimension? A cigar?
And what would the 4d equivalent of a flat disc like a coin be?
And what would the 4d equivalent of a flat disc like a coin be?
