Growthbusters

I just saw a poster in a local coffee shop, that referenced a new
documentary called "Growthbusters":

http://www.growthbusters.org/about-2/synopsis/

Now I'm depressed. When I was a kid (in the 70s), people looked upward
and outward. They dreamed big dreams and knew that Earth was only one
small planet in a vast, rich cosmos... and that one day, we would go
other places and do big things.

But now it seems like most people have forgotten. Nobody looks up
anymore. People not only assume that the Earth is all there is or ever
will be -- they do this so subconsciously, it's not even questioned.

This "growthbusters" nonsense is just one example. Read through the
synopsis above; so entrenched is the assumption that our resources are
finite, that they consider it hardly worth mentioning. The only hint I
can find is "addiction to unending growth in a world that has limits."
It's clear that by "world" they mean "everything humanity has or will
ever have access to."

Obviously if the Earth really was the totality of the universe, if our
resources really were finite, then yeah, limiting (even reducing) our
population would be the only rational course. But I look up and see a
whole lot of material and energy out there, lifeless, vacant, just
waiting for us to put them to good use. It seems obvious to me that
humanity will expand into the solar system, which can support trillions
of people in comfort and prosperity, and eventually spread to the stars.
And this is a good thing -- life is more valuable than non-life, and
right now, we see only non-life everywhere we look.

But it seems that most people treat Apollo as "that stunt they did (or
faked) last century" rather than the first step in opening new
frontiers. In fact, just this morning I ran across this:

http://www.discovery.com/tv-shows/alaska-the-last-frontier

Alaska? The last frontier?!? How have people forgotten the true final
frontier so thoroughly?

And -- to turn all this grousing in a more productive direction -- what
can we do about it?