Thinking of time as a dimension is indeed very convenient, and our brains are wired to do so very naturally. But as I have looked at the time problem (over time), it seems to me that the only consistent ontology is to exclude time as a "thing" that has existence, but is rather a mental construction for convenience.

For example, viewing time as a dimension leads to Jean Calvin's (founder of the false Calvinist religion) error of thinking that the future exists and therefore is immutable.

Is there even a now? If there is, will it not have a period? And cannot that period be infinitely divided? So the term now is maybe a bad one. There just "is", or maybe "is not", or maybe a sort of Kekulaen hypo-hyper dimensional state.

The trouble with all of this, is that using our human terms and definitions (both often having incredulous evidence) many things might not exist. Mass, space, dimensions, consciousness, time, life etc. At the very best, the terms and descriptions of the associated phenomena will change, hopefully into things more meaningful. But I doubt it ...

Is is meaningful to exist, when we do so in a state of false descriptions with no real hope of resolution? What value is there in being part of an infinite illusion? I'm off to the poetry forum ......

Some things improve with age.
Shall I dare to list them here?
Some bonsai, some software, a sage.
Other things decline with time,
Against them we can only rage.