Quote:
Originally Posted by wodin
The bottom line is that petroleum products (gasoline/diesel/jet fuel) currently enjoy the highest energy density of any technology, not only on the vehicle end but also the infrastructure side. Until that changes, I'm afraid we will not see any significant advances in alternative technologies.
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Things like cost, availability and environmental damage are changing that bottom line equation right now. It's only a matter of (short) time before the energy density advantage of oil is outweighed by its downsides... or the whole system, propping itself up for too long to ignore those downsides, collapses upon itself and leaves us no choice but to convert the bulk of our driving to alternative systems.