the us won't change, they're just stubborn. it's not that they're wrong in using the imperial system, but if they did switch to metric, it'd almost be like subtly admitting that they were wrong in some way. they don't want to come across that way now do they? i dunno, is it that big a deal really though? i can do metric to imperial measurements in my head no prob. grams to quarter ounces, grams to ounces, kilos to pounds :P
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