Level the field when letting computers play against each other I just read this question and it made me wonder: when setting up such a game/comparison - shouldn't you try to level the computing capacity field? Or at least limit how much energy each "player" is allowed to use (and then let each team optimize within that limit). Otherwise, isn't it just a matter of building the biggest computer?
You absolutely should, which is why the two most important computer chess tournaments (CCC and TCEC) both make all competitors play on the "same" hardware. "Same" in inverted commas because the recent advent of neural-network engines like AlphaZero, which run best on GPUs, meant that it's no longer fair to play on exactly the same hardware for everyone.

You can see the result of not using equal hardware from the 2019 WCCC results, which Komodo won. Komodo is almost a hundred elo behind Stockfish when run on equal hardware (and Stockfish doesn't play in the WCCC, because it's not a commercial engine and doesn't have full-time staff to attend the event).

The situation right now is traditional engines run on the same CPUs, NN engines run on the same GPUs, and whenever traditional engines play against NN engines, they run on consensus fair hardware. "Fair" here is a very controversial word, because there are several different measures of what is fair that I'm glossing over. Suffice to say unless you are a hardware expert yourself, I'd just trust the admins of CCC and TCEC to use something that's fair.

Edit: to illustrate the impact of hardware, here's the list of hardware the competitors played at in the 2019 WCCC. Note Jonny ran on 1200 (!) cores, and it just barely edged out Ginkgo, which was running on 1/20 of the cores. In TCEC Season 14, the two engines played with the same hardware in Division 1, and Ginkgo comfortably finished ahead of Jonny in spite of multiple crashes (which happen because Ginkgo doesn't run well at 43 cores; they result in auto-losses).

You can also see that these games were played is Division 1, not even Division Premier. Many of the strongest engines in the world simply don't participate in WCCC. I don't know the exact reasons why, but I'm confident hardware is a major issue for participants. In turn, this lack of participation is partly why the community don't take the WCCC very seriously.