Nice article. Thanks for sharing, OP. Here's an idea I've had and thought about for quite some time. Tell me what you think, (anyone, not just OP):

What if the universe, including time, acts like a spring? Essentially, we have low entropy at the time of the big bang. Entropy increases after the big bang, everything is moving outward from that area, and it is currently positively accelerating. Eventually, we'd reach a point where the acceleration will decrease as everything is in a state spread much more outward. It will decrease until everything stops. At this point, the process will reverse itself. Time will begin to move in the opposite direction it is now and everything will come back together, entropy decreasing. All previous processes will be reversed. Now, in this idea/theory, I don't necessarily know what point everything would get to on each reversal. It might not have enough momentum to reach the initial state, but it'd at least come close (sort of like dropping a superball from 10ft, it bounces to 9ft, then 8ft, and so on.)

So, I picture it playing out in one of two ways: 1) Either it goes all the way back to the level of minimum entropy, then reverses again to maximum, and the cycle continues infinitely or 2) It's more like the superball where it doesn't quite reach the maximum and minimum but comes close and less close on each reversal of time/entropy direction. The cycle would continue until it reaches the average of the minimum and maximum entropy values and time would simply stop.

Final thought: If we were going back in time right now, we wouldn't even know it, correct? That is, if all processes in the universe were reversed, that'd include the neurochemical reactions in our brains (i.e., our thoughts) and since the external processes (observable physical phenomena) are going in the same direction as our thoughts, we'd always simply see it in one way, the way we know and perceive to be "time moving forward." If you believe you made eggs today, those eggs will have actually reassembled themselves if we're going backwards in time, that's just not the way you would have perceived it.

[Here are some more things to elaborate which I've just begun to think about. Likely much more rough ideas, so skip or omit if you like, but I'd still appreciate input on this part 2:]

But when I think about this, I wonder "What about memory?" We'd be continuously losing memories, but we'd be unaware of it. We'd always have fewer memories than "before" ("before" being more "forward" in what we see as a traditional timeline because "before" would be further ahead in time since we're moving backwards.) As we'd move backward, at each point in time we'd still have the most memories of events that we'd ever recall having, but ones from our older age would be gone.