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Re:Placebo effect works in video games too by Manishearth on Monday October 12, 2015 @10:19PM (#10378158)
Agreed. Nothing in the article indicates that the results were due to a placebo effect and not due to randomness.
Re:Placebo effect works in video games too by 746F7475 on Tuesday October 13, 2015 @04:36AM (#10379173)
Yep, they would need a lot more play time.

Like first two weeks of play in the "non-AI" version and then tell the player "AI" was added and ask after another two weeks if they find the new version more enjoyable in general