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If two slow-moving lanes of traffic average the same speed, the other lane will be moving faster than your lane for more than half of the time.
Demonstration: let's assign arbirtary values and extreme cases. You and another driver are travelling 20 miles. For the first 10 miles, you average a speed of 5 miles per hour. For the second 10 miles, you average 100 miles per hour. The other lane does the exact opposite. You spend (10/5) two hours watching the other cars pass you, then (10/100) 6 minutes passing the other cars, but you arrive at the same time as the other driver.
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I can't read your signature. Sorry.
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