There and back again. I set my *dark matter pocket watch, and shifted to May 24,1967 CE 2:28 pm, Central Park. The experience is like passing through a warm mist. To any watching I would seem to have just walked from under the shade of a tree. The unit makes your entry as unremarkable as possible. I wander the park, and observe an actual Hippie Be-in. Of a kind I remember taking part in as a teen. Though now with the experience of 55 years I see with very different eyes.

I was at first moved. 

Their hope affection trust. All of which will be co-opted, and betrayed. I realized many of these youths will go on to become the selfish ‘Me Generation’ of the 1970's. Later as elders hostile xenophobic culture warriors.
I left with somber feelings.
My next stop Wyoming 26,000~BCE.I was always interested in that culture. Them folks were still somewhat fresh from Pan-Asia so may never have heard any Country & Western Music or had much experience with cops or income tax.

*Thoughts on time shifting to lost human cultures.

We have been physically mentally capable as we are for perhaps a half million years. Depending on which tenured wonk you ask. More than enough time to get up to all sorts of mayhem. From what other temporal shifters tell me.  During the lower sea level period of the the ice age. There was a Bronze Age culture. This on a large island now at the bottom of the Indian Ocean.  

Later a sea faring world exploring 18th or early 19th century level society. This 12,000 years ago. That might be where the Atlantis myth came from. Still another in its early Iron Age. It’s currently buried under the Siberian tundra, and Arctic Ocean. Traces have been found, but mis-identified. As so much has been.

There have been attempts to reach these times by many temporal shifters. Few return. However, a dark matter temporal watch was found among the items from that Siberian tundra culture. So more than one of us made it back there. The native artifacts the watch and an iPhone date to approx. 29,000 BCE.

Given half a million years of unknown history. I suspect there was at least one culture at our level or better also lost. We may find their stuff on the Moon Mars or the moons of the gas giants eventually.  

Time will tell.