“Don’t you get it? The grand enigma of our universe. The joy of science, the power of math, the elation of discovery.” He looked out again, speaking … - Jack Williamson

Creation.…
It is its own nemesis. Success is temporary, and idolization will not make the ephemeral permanent. Decay is implicit in the birth of any organism.
An empire is an organism.

“The only real scientific support of extrasensory and psychokinetic phenomena has come from such studies as those at Duke University,” he added. “Some of the published results purporting to show the reality of ESP and the mental manipulation of probability are pretty convincing—but I’m afraid the wish to demonstrate the survival of the soul has blinded the researchers to some grave flaw in their experimental or statistical methods.”
He shook his head, with a sober emphasis.
“This universe, to me, is strictly mechanistic. Every phenomena that takes place in it—from the birth of suns to the tendency of men to live in fear of gods and devils—was implicit in the primal superatom from whose explosive cosmic energy it was formed. The efforts that some distinguished scientists make to find room for operation of a free human will and the creative function of supernatural divinity in such apparent defects of mechanistic determination as Heisenberg’s principle of uncertainty—those futile efforts are as pathetic to me as the crudest attempt of a witch doctor to make it rain by sprinkling water on the ground. All the so-called supernatural, Mr. Barbee, is pure delusion, based on misdirected emotion and inaccurate observation and illogical thinking.”
His calm brown face smiled hopefully.
“Does that make you feel any better?”
“It does, doctor.”

The criticism of SF has tapped rich new vines for researchers, and I can think of writers who seem to be trying harder to impress the critics than to please their readers. I’m afraid the critical tail has begun to wag the creative dog.