Anyone know this story?
I've been trying to find two short stories that I read years ago, so far with little success. AFAIR they were both in paperback anthologies published around the mid-1960s:
1. The first is set in the world as we know it, but someone discovers that our universe is shrinking. No one noticies anything because of course everything is shrinking at the same pace - except the speed of light, so by the end of the story everything takes on a red-shift and eventually vanishes altogether.
2. The second is a time-loop story that has our hero traveling back and forth in time. It makes heavy use of paradoxes: so for example, our hero picks up a box of matches from a table. A little later he travels back in time, and at some point places the box on the table, ready for him to pick up at some point in the future. But where does the box come from? Not a new idea, but what makes this story unusual is that every element in the story is the product of such a loop - nothing in the story has any independent existence.
Has anyone read either of these stories? Author's name and title would be brilliant.