Maybe, but if you take a look at a lot of technology that we have today, it actually is the stuff that was in sci-fi movies and books half a century ago.
We don't have faster than light travel and we aren't out exploring space the way that people imagined we might be, but on the other hand the internet is far more advanced and world changing than anything sci-fi could come up with.
We shouldn't be afraid of solutions because they seem fanciful, we should just find ways to make the best ones happen.