But (to continue the anology) the drainpipe isn't backed up, it's just shorter. The outflow channel from the great lakes hasn't changed it's cross-section/capacity, just the distance before it reaches sealevel. Instead of the pipe carrying the water down to the basement, it's spilling onto the bathroom floor, but the sink is still draining at the same rate.
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"I've always wanted to be somebody, but I should have been more specific." - George Carlin
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"I've always wanted to be somebody, but I should have been more specific." - George Carlin