One way of looking at it is that instead of comparing, say, Betts to a .300 hitter or a .200 hitter (+.015 or -.020 or something), OR a hitter with 10 extra-base hits or 50 extra-base hits (+27 or -2 etc.)...
Is they are comparing Betts to a player who hits .200 with 10 extra-base hits vs. a player who hits .300 with 50 extra base hits in the same number of PA.
If people find that useful, OK but in terms of say transportation, it'd be like instead of comparing:
10 MPH to 55 MPH to 700 MPH
OR
17 MPG to 32 MPG to 130 MPG
Attributing a number to a car that's based on comparing (Vehicle 1) 10 MPH & 17 MPG to (Vehicle 2) 700 MPH & 130 MPG. Then the car gets a number not just based on how much better it is than 10 MPH & 17 MPG but how it compares to (the 10 MPH/17MPG vehicle vs. the 700 MPH/130 MPG vehicle)...
If that doesn't make sense, that's what doesn't make sense to me about the metric WAR. Besides anything about the math being complex.
Thanks.
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