The dapper man picked up a penny. Having stopped, he was hit by an unsuspecting driver who failed to see him get skewered by the starting handle from the high cab of the grocer's van. At first I smiled for having placed the coin, specially bought at auction 68 years from now. And then… absolutely nothing happened.
When SciFi authors tell you of the Grandfather Paradox, don't believe a bloody word. I'd spent a fortune, and most of my adult life pushing the boundaries of Quantum Symmetry, SuperStrings and a host of other areas of Science and Technology. All for...