Conceptual Continuities And A Missing Post

A recent post showed conceptual continuities between:

Heinlein, The Green Hills Of Earth (Future History);
Asimov, I, Robot (Robots and Empire);
Blish, They Shall Have Stars (Cities in Flight);
Niven, Tales of Known Space (Known Space);
Anderson, Genesis (sui generis).

Later future histories incorporate later scientific knowledge and demonstrate the extent of the growth of such knowledge since 1950. We move from Heinlein's habitable Venus to Anderson's Mercury no longer facing one side to the Sun.

I knew that I had posted about this before but could not find the post anywhere on Poul Anderson Appreciation. Then I thought to look on Science Fiction. See here.