I’ve always thought that the Zero Population Growth movement was idiotic.  This is not because I think “The more humans the better”, though I do think this, but that “The more humans the better chance of more geniuses.”  We need those smarter people!  For inventions, for knowledge, and for advancement.

But, in amongst the geniuses we always find those humans who may not be geniuses, but who nevertheless find ways to get things done, even where there are limitations to available technology, or limitations due to artificial constraints on economy.  As evidence in support of this, I present “Cuba’s DIY Inventions from 20 Years of Isolation.”  It is marvelous what we humans can come up with!