That's the way I see it. Actually I have my doubts about human travel of the solar system . We have not really conquered the challenges of the effect of weightlessness in low earth orbit. We are making great strides in robotics ;but that won't find us another place to inhabit when the next killer rock collides with the earth.Quote:
Inter-solar research and discovery will increase. But inter-galaxtic? I doubt that strongly !
Too expensive in many respects, too difficult, too far, and too many problems with the consequences of relativity.
Your comments about relativity is the reason that I doubt we have been visited from other galactic travellers . If they had indeed beaten the challenges then why would they keep it secret ? Why is it that only people South of the Mason-Dixon line or west of the Mississippi River living in trailers ever see them ?
As far as available energy and raw material shortages ;I still have a strong belief in human adaptability ;and ingenuity .