Time varies with mass, acceleration, and *gravity*, but we shall not go into details. We note that the universe could also be finite, especially if it had a beginning, and only be infinite in the **infinite future**. Because it is apparently expanding at an *accelerating* speed greater than the speed of light, we can only see part of it, and as time goes on we will see less of it because the expansion will “**outrun**” light.

This does not **contradict** the idea that objects cannot go faster than the speed of light as the *expansion* is not to do with the objects in space but is due to the expansion of space itself. It’s like marks on a *balloon* that further separate from each other as the balloon is pumped up; the space between the marks expands. Nor does it depend on human minds for its existence, although it exists in human **intellect**.

We see then that although mathematics is a model for reality, it is not reality as we **imagine** but has a separate existence in the abstract: as already noted, *infinity* is a mathematical idea and not something that actually exists in real life. Similarly there is no single point corresponding to *time zero*, as a point is a mathematical construct of zero “**length**.”