We're going backwards in time. Remember, entropy tends towards maximum decay. Since we're every improving ourselves, our society, our capabilities - the entropy arrow is obviously pointed in the opposite direction.

The reason is that we're caught in a wormhole that's looped itself and is literally upchucking it's contents (our vast section of the universe warped to a small fraction of an inch) back into the cosmos (much bigger than the universe - the Russians have always been bigger).

We don't see it because of relativity. Everything is relative, including time.

***

Ok, enough of that.

I'd go back a 1,000 years, where fleas propogated plagues among humans, where peasants (most were peasants) were subject to being killed at the whim of noblemen and where the clergy engaged themselves in the same power struggles as the landholders.

On second thought...