Apparently, Jennings agreed to work as a specialized mechanic for two years at Rethrick Construction, having his memory wiped at the end in return for 50,000 credits—except instead of a bag full of credits, the memory-wiped Jennings is left holding a bag of seven trinkets and no idea why he would have agreed to such a thing.

Although the story is not about time travel, the characters do spend the first couple of pages reminiscing about their disappointing experiences with a time machine.

The story does not involve time travel, but it does have speeded-up time as in “The New Accelerator” by H. G. Wells.

Hugh Farnam makes good preparations for his family to survive a nuclear holocaust, but are the preparations good enough to survive a trip to the future?

In his blog, Fred Pohl wrote about how Heinlein’s agent gave permission for Pohl publish the novel in If and to cut “five or ten thousand words in the beginning that were argumentative, extraneous and kind of boring” (and Pohl agreed to pay full rate for the cut words). But apparently, Heinlein “went ballistic” when he saw the first installment, so much so that when the book appeared as a separate publication, Heinlein made sure people knew who was responsible for the previous cuts by adding a note* that “A short version of this novel, as cut and revised by Frederik Pohl, appeared in Worlds of If Magazine.”

* The version of Heinlein’s note that Pohl recalled was much funnier than Heinlein’s actual note in our timeline, but sadly, we have lost track of where we saw Pohl’s version.

On a driving holiday in Argyll, Mr. and Mrs. Garland hope to find a way out of their hateful marriage, but instead they find a field of slow glass harvesting the light of other days.