until we have developed the technology for cheap, reliable, safe and regular access to low earth orbit, space is simply not very accessible at all
It doesn't matter, because you don't need to send much up. We can do almost everything via telepresence. We're still dicking around doing "pure science" when every dollar on space should be spent on commercialization and exploitation. Yeah that's a bad word, but nobody will miss some asteroids, unless you miss a catch and they hit the planet.