Dream Atlas by Michael Swanwick (Asimov’s SF, March/April 2021) has a scientist studying dreams meet her future self while having one. She is subsequently told that the dream continuum stretches through space and time and can be used to see the past and future. Future scientist then tells her the eighteen principles she needs to complete her work and earn a Nobel Prize, much wealth, and fame. However, (spoiler) before future scientist can finish her spiel, far-future beings1 interrupt the process and tell the present day scientist it would be too hazardous for the people of her time to have that knowledge.
This is an entertaining enough squib but it is slight, and doesn’t really make any sense if you think about it too much: how would the future scientist come into existence if the far-future beings intervene?
** (Average). 2,100 words.
1. The far-future beings sound like the same kind of deal as The Unchanging in his story Scherzo with Tyrannosaur (Asimov’s SF, July 1999), reviewed here recently.