How More Efficient?
Do the math
Current GDP is ca. U.S.$32 trillion and we
 are not nearly sustainable.
SRES targets are U.S.$250 to $550 trillion by 2100.
If our economies “dematerialize” by an optimistic
factor of 10 we’d still be as unsustainable as today.
Questions avoided
What are the consequences of “being unsustainable?”
Isn’t sustainability inevitable someday?