Here's a technological question with philosophical side-effects that's been bugging me for the past few days ...
Today, the commercial exploitation of outer space appears to be a growth area. Barely a week goes by without a satellite launch somewhere on the planet. SpaceX has a gigantic order book and a contract to ferry astronauts to the ISS, probably starting in 2018; United Launch Alliance have a similar manned space taxi under development, and there are multiple competing projects under way to fill low earth orbit with constellations of hundreds of small data relay satellites to bring internet connectivity to the entire planet. For the first time since the 1960s it's beginning to look as if human activity beyond low earth orbit is a distinct possibility within the next decade.
But there's a fly in the ointment.