What happens if we ask Laplace's demon (assumption of reversibility) to battle Maxwell's demon (entropy decrease) - will it end in an infinite loop?

At some level, even systemd is built on a superloop, or "main" method, which depends on a power supply.

So the computers are depending on physics again, to persuade us that:

• electron + positron = photon

• photon really is a fundamental particle in the Standard Model

• Elementary charges are measured as +1, -1 electron... ok I'm confused now.

• One Electron Universe?

Also time causes gravity.

I didn’t look terribly long so I can’t find a reference, but I believe when Kelvin coined the term he used the daemon spelling

Yes, the process was named after Maxwell's daemon: https://en.wikipedia.org/wiki/Daemon_(computing)