If he was right, it means the finite limits of the resources that power our cities and our factories and our vehicles have been vastly overstated."
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I agree, it's a terrible sentence, but I think he is trying to say that the FINITE part has been overstated, i.e. we don't have hard limits on the oil inside the earth. i.e. there is a virtually infinite supply, because new oil keeps forming.
Corrected
If he was right, it means the limited quantities of the resources that power our cities, factories, and our vehicles have been vastly understated.
For those in Rio Linda...
If he was right, we got a whole lot more than the experts think.
Thanks all for the clarification.