[Tony Stanton]

Neutralino

That's not precisely true though, is it?

Yes it is!

which isn't really a definition of a "second." What do you mean by "radiate" in this context? This doesn't make sense to me; what you appear to be saying is that matter changes the volume of spacetime every second, but also that the volume of spacetime is actually a unit of time.

I would not expect you to understand it after reading through it once. To understand it you will have to use and play with my equations. Did you understand Einstein’s relativity straight away? I think not.
You also have to appreciate that you have been taught to think of space and time as separate dimensions so it will be difficult for anyone who is classically trained to think of spacetime in a completely different way.
Your body is radiating space while you are sitting there reading this. You are unaware of it but what you perceive as motion through time, times arrow, is the rate at which your body is producing the space around you.

So, you are saying that matter is constantly changing the volume of spacetime in which it is sitting.

Yes, exactly!

Further, later on you mention something about time periods, and distances measured over time periods, however you do not define "time period."

I haven’t defined a time period. Science uses the second so I have kept that convention. You could use a smaller period of time which means a smaller volume of space and different value for the spacetime constant (STC) but whatever time period is used that same time period must be used in the equations where ‘t’ is present to give the correct answer in the known dimension of the second that physics uses.

Tony