About being Na'vi, I think that's a good way of putting it... I don't say I actually AM Na'vi, but I do say that Pandora is my true home and that perhaps, somehow, I
SHOULD have been. Huge difference there.
I think that as far as space goes, any species that reaches that stage will be more likely to actually have 'woken up' to their problems due to the effort and coordination required... At the moment, it's looking like not even the USA can afford proper space exploration any more.
It is 41 years since we went to the moon... We have not gone any further. We haven't even been back

There are innumerable benefits to space... but we will need to all work together to reach then