Most Reddit addicted city with over 100k visits total // 1. Eglin Air Force Base, FL

actors all over the world are performing trials exactly like this all the time

I marketing speak this is called A/B testing.

The key result

When researchers asked the AI to personalize its arguments to a Redditor’s biographical details, including gender, age, and political leanings (inferred, courtesy of another AI model, through the Redditor’s post history), a surprising number of minds indeed appear to have been changed. Those personalized AI arguments received, on average, far higher scores in the subreddit’s point system than nearly all human commenters

If it really is infinite then it will be difficult to prove that there are only 2 players.

I agree with your stepfathers reasoning, but not his method.

All of this can be done with AR on a mobile phone.

Only when you need to do this AND have both hands free do AR glasses become necessary. So surgery, bomb refusal or something niche like thar.