Depends what SciFi we’re talking about. “2001: A Space Odyssey” plays like a total fairly tale now but I would say it was technically achievable to have lunar base in 2001 (but not going to Jupiter if I remember the plot correctly). Mars trilogy by Robinson starts in 2035 if I remember correctly and initial mission was based on cheap launch system to orbit. I think this was also feasible with sustained investment. A lot of other SciFi is based on FTL travel, AI or hibernation which we cannot place on some tech roadmap so we cannot say what does and doesn’t “lead” to it.
Depends what SciFi we’re talking about. “2001: A Space Odyssey” plays like a total fairly tale now but I would say it was technically achievable to have lunar base in 2001 (but not going to Jupiter if I remember the plot correctly). Mars trilogy by Robinson starts in 2035 if I remember correctly and initial mission was based on cheap launch system to orbit. I think this was also feasible with sustained investment. A lot of other SciFi is based on FTL travel, AI or hibernation which we cannot place on some tech roadmap so we cannot say what does and doesn’t “lead” to it.