But I wil not be so sure with algae or with some oter very siple organism..wher the quantity of area needed will be much more lower. this is, the crops we are talking take a lot of space per unit energy.
So... I think that if you number are rigth.. I will be for looking into these alternative organisms...
By the way.. it wa actually close to 15 % a factor of 3 plus doubling efficiency of cars makes it 90%...so enough for a very goof fleat.
A pleasure I therefore claim to show, not how men think in myths, but how myths operate in men's minds without their being aware of the fact. Levi-Strauss, Claude
Do we include it in the input?