I don’t think it’s actually getting cheaper, in real terms, and if it were and there was a financial incentive to go we’d have gone. There’s no financial incentive to go where the resources aren’t, and humanity is a long way from being able to visit the interstellar medium and be able to send anything but information back.

Also don’t know how you’ve missed it, but we’re actually in a more globally precarious position today than we were during the vast majority of the Cold War. But let’s see where we are in 2030.