Right, well and maybe I was thinking about it wrong. I was thinking about how people are more efficient for shorter sprints and then tire, so as a group they go faster if they sprint and rest in succession.
However, thinking about it again, cars don't get tired. OK P&G has gone back to not making any sense. to me.
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Frank
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RIDE A BIKE!: "If by tomorrow, every gas guzzler on the road were replaced by Priuses, we would still have the same gridlock, accidents, deaths, injuries and the same pressures to put more asphalt, strip malls and subdivisions." --Thomas Smart: SuperCommuter
