In response to:

Freedom: The Unfolding Revolution

Sandy235 Wrote: Jun 14, 2013 4:02 PM
Great column. One correction: there is time travel. The direction is only one way and the speed is constant.
Scrap Iron in Texas Wrote: Jun 14, 2013 4:15 PM
Accelerate to the speed of light and time dilation takes over.
One can travel across the galaxy in a subjective time of about 57 t=years, while outside, millions of years will pass.
Creepy-Ass-Carbine Wrote: Jun 14, 2013 6:23 PM
I see you watched The Cosmos.