Earlier quoted context omitted.
Not really comparable. Flying cars are not technological fiction, they're just called helicopters, it's just that from a economic/ecology POV they make no sense. Space travel between worlds is SF.
But we have sent probes to other worlds? What is science fiction about this? A manned mission to Mars is entirely feasible with current technology. In fact I'd argue it'd have been feasible with 1980s technology, it was simply costly. If we (we as in humankind) wanted, we could have a base on Mars for some time now. Who is to say what our capabilities will be in 50 years? In 100 years? A manned mission to another sol…
Probes aren't space travel for humans.
> A manned mission to Mars is entirely feasible with current technology.
As no manned missions to Mars have ever proven this conjecture, it is still entirely speculation on your part.
> A manned mission to another solar system is going to be very-very difficult, we'd need generational space ship/habitats. Note that difficult is not the same as impossible.
No, it is impossible. Humans cannot survive in space that long. Never have, currently can't, and there's no precedent to assume it ever becomes possible. Pure speculation on your part.