As long as I’ve been picking my own reading material, a huge fraction of it has science fiction. I’ve been doing that picking since about 1963-ish, so let’s just call it 50+ years. Up until around the mid 1990s, it would have been hard to name a science fiction book or movie I didn’t know (and in many cases, own).
But somewhere near the end of the last century science fiction became a full-fledged mass-produced commodity that through sheer over-exposure became dull and uninteresting. In a way, I blame George Lucas and Star Wars, so I split SF into two eras:
Before Lucas (B.L.) and Anno Stella Bella (ASB).