What if time was circular? That in the future all matter becomes compressed smaller than this period.

I have thought of that idea. According to some cultures time is circular. But I think it still leads to infinite regression. Once a circle is made it is self sustaining but the circle has to be made first. I thought I came up with an answer but it still had infinite regression. lol

What if time doesn't exist? It seems us humans are the only ones that implement this human construct to attempt to make sense of things.

Marshall Barnes on Quora gives the perfect answer...

"Time itself is neither. Time doesn’t flow or move but allows other things to do so. So cycles that we observe have nothing to do with time other than time allows them to exist. Time is attached to every part of space, forming the space-time continuum and since everything is moving, vibrating, changing, that is due to the fact that time is the dimensional aspect that allows change, and spatial dimensions allow things to be in different places. When those things change position, that is because time allows it to happen. No time, no change, no nothing.

We know time is real because if it wasn’t, time dilation wouldn’t occur. Time dilation is those distortions in what we think to be the flow of time, during high velocity transits or in the presence of strong gravitational fields.

When people think that celestial changes, or seasonal changes due to the Earth’s position around the sun, are time, that’s like thinking a fish swimming in a fish tank, is the water. Actually, the tank is like space, and the water is like time. The water fills the tank and is everywhere. If it wasn’t, the fish couldn’t move and would be dead despite all of that space in the tank.

The fact that time doesn’t move explains the asymmetry of time, or why things never seem to go backwards. Despite the fact that physicists can run their equations forward and backwards, we never see the events that those equations explain, happen in reverse. That’s because time has nothing to do with either, it’s just there serving the purpose I described. For things to happen in reverse, all of the forces and process that cause them to happen in a causal order, would have to reverse, and that’s never going to happen. Gravity, will not reverse, your biological processes will not reverse, the expansion of gases during an explosion will not reverse, because there is no causal agent that could make them do so."

Marshall Barnes has 20 years + experience on time research

Doesn't look that way. The universe is still expanding, and the rate of expansion is speeding up.

Also, the idea of a singularity exploding into the big bang is about 20 years out of date. Although that hasn't made it into popular culture yet, and there's no consistent replacement so everyone's just been kind of shrugging their shoulders (besides the string theory crowd). If time didn't begin as a compressed point, time can't return to a compressed point to make it circular.

Really, everyone is pretty much waiting on the unified theory to move any further.

It sounds better then the 'heat death' scenario - which frankly sounds quite depressing

Steven Hawkins wrote a book about this. I couldn't read it all. I may try again.

Cool concept!

So time repeat itself?

The Big Crunch is thought unlikely now by scientists.

You watched that movie, didn't ya?