Part of the difficulty arises in attempting to depict the four (known*) dimensions of space-time in two dimensions, especially when everything is moving away from us,
in every direction, but we’re not at the center.

Not nearly as easy as using a vanishing point as we do to depict three dimensions on a two dimensional surface.

Imagine how Pluto must have felt after he got put
outside our solar system and was no longer a planet

*
Length. Width. Height. Weight. Mass. Density. Speed. Sexual orientation …