If I got sent into the pre-cellphone past:
- First get fabulously wealthy, Back To The Future Style
- Create and sell a line of shampoos, lotions, and other similar products whose gimmick is specifically that every bottle has an entire sci-fi short story included on the label in very small print for people to read when they’re stuck in the bathroom and bored (again: pre-cellphone. There was a lot of shampoo-bottle-reading)
- Several short stories would include ridiculously outlandish little details– the Tesla tunnel death trap, the Trump presidency, remote learning during the lockdown– that are just written off as sci-fi silliness.
- Time marches on. There’s now a subreddit about people who collect vintage bottles from that one weird short story shampoo brand, who swear up and down that it’s telling the future