In the Fargorate discussion don't forget the robustness factor. Even with the 250 entries or whatever the minimum is to call a rating established there's a wide range for adjustment. Players with large robustness numbers can be analized by 25 point differences accurately. A minimum robustness number could still be off by 50 points easily.
50 points is not much in Fargo, it's the range of error and player variance. A 400 can play like a 350 or a 450 on any given night. I mean we are human not machines. For a 500, 50 points is a 10% change, that is not that much over time, and I bet most of us would not notice a 10% +- change in anything without a measurement we can see or comparison. For example, if you sat in a car and it went 6 seconds to 60, and another car a bit later went 5.4, I would bet that it would not be easy to say which one was faster without having the two cars racing side by side or with a timer. Or if you threw a ball 50 yards and then one 55 yards, without seeing where the ball lands probably no one can say how far each toss went, humans have a hard time estimating things close to each other.
I think I read a study where it took about a 30% difference for a person to clearly notice a difference without being not sure about it. That is a normal average thing of-course, I am sure some experts can spot differences in things closer than normal people, like a weightlifter can probably say for sure a weight is 100 lbs vs 110 lbs when a guy off the street may view those as the same.
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