zero_spelled_with_an_ecks , 8 months ago

Here’s a few ways:

Information: does an individual know chess rules? Openings? En passant? Do they want to spend the time and effort to learn? Are they getting their info from reliable sources or are they learning bongcloud and knooks?

Difference in skill level: the food and diet industries have thousands of specialists on their side with experience in psychology, advertisement, economics, lobbying, etc. Grandmasters can set up traps that new like a good idea to their opponent while thinking 10 steps ahead.

Complexity: chess and diet are not a single choice, but a series of choices, some of which make later moves more difficult.

Effort: it takes a long time to learn enough to even put up a decent resistance to a grandmaster, let alone win. It’s more than I’d care to put in. I don’t want to think about chess all the time. That’s called a chessing disorder.