Ugh, sadly I fear you may be right on the corn famine issue. It will not be a pretty picture when it happens.
As far as energy efficiency developing, well darn it, work faster! Heh, all things compared, I find it a wonder that we were not focusing more on diesel engines long before this. Consider that early diesel engines were actually designed with plant oils in mind. Yay peanut oil and other used vegetable oils. Now if I only had one of those kits for filtration and use...
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