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while we're at it*, RLF82: "Flattening spacetime near the Earth": https://journals.aps.org/prd/abstract/10.1103/PhysRevD.26.73...

* (and I am admiring the specificity of that HN acct)

Or, more directly, Niven’s “The Smoke Ring” about humans living directly in an oxygenated accretion disk around a white dwarf.

I think you wrote compare forward as a long version of cf., but I believe cf. is actually short for the latin confer

note wrt to comment elsewhere in this thread that Forward was also involved with physical aspects of the Integral Trees/Smoke Ring world build.