I wonder if in 2050 there will be a movie called, 'Dude, Where's My Spaceship'
If we want to go to space with humans, that's for fun not for science. Human adventures in space are just sporting events.
I can only think of one experience which might exceed in interest a few hours spent under water, and that would be a journey to Mars.
Astronauts are the only kind of celebrity I know who can have a line of people waiting for their autograph, even if the line of people does not know in advance the astronaut's name.
Don't need cars cause we've learned to fly on Saturn.
The same way people are now paying a couple thousand dollars to fly to other parts of the world, people will be paying $50,000 to spend a weekend on a space station.
With our present knowledge, we can respond to the challenge of stellar space flight solely with intellectual concepts and purely hypothetical analysis. Hardware solutions are still entirely beyond our reach and far, far away.