I doubt it. What with the oil it takes to mine the components, transport
them, mix them and then dry the final product in the "ovens". Not to
mention the delivery cost of the block to the destination and moving large
quantities around. To be sure, each year of use depreciates the "oil value".
But I think it's still quite high, especially for an experimental project.

"Jim Webster" wrote in message
...

"Archimedes Plutonium" wrote in message
...
Now I suspect that in the future when agriculture does not use one drop
of
petroleum on farming and where about 50% of Earth's population is
working
to produce food and where Earth has a controlled total population of
about
2 billion people and no more.

So these block not only become the ideal method of gardening but in the
distant future become the ideal method of Farming.

wonder if he has ever stopped to think what the oil cost of concrete
blocks
is

Jim Webster