Toward the end of the last book of the Remembrance of Earth's Past series, Death's End, there is (spoiler):
a small universe, one of many, which various low entropy species have setup as "bubbles floating above the supermembrane which contains the Great Universe(s)".
The cosmologist in that part recognizes the cubic space through the research of Charles Miser who the cosmologist directly mentions.
I've looked into Charles Miser's work a bit and haven't found anything with any clear relation to that space in the book. Maybe I haven't dug deep enough into his work, or maybe I am looking in the wrong place.
What is the connection between Charles Miser and that space toward the end of the trilogy?