Brains in a dish.
Early 20th century SF writer Olaf Stapledon wrote a massive work called “Last and First Men”, which was a future history of the evolution of humankind through many iterations. Has anyone read it?
The Fourth Men were the brains in a dish. They ruled the world, and the remaining humans served them, for a while. It ended badly.
There was a similar Star Trek episode. Had Kirk fight a gladiator duel with a babe in a bikini. The brains were betting on the match.
The show didn’t end well either. Kirk had to leave her behind.
How do I know this?
Every once and I while when the alien scientists tending our brains are off in meetings I'll start acting all nonchalant whistling a simple tune and then really quickly I'll look out the left side of my eyes and see the electronic cables hooked up to my cerebrum.
That reminds me...there was a place in St. Louis where you could get fried brain sandwiches.