Basically the same way I describe the Nostr to friends at work. It's like the old way of the internet when no one knew about the internet. It's like the wide wild west with few rules. Nostr reminds me of the old BBS chat rooms, IRC, and text based forums like 4chan. Back in the old days when everyone would sling *.HTML code in Notepad and upload to your 5MB web space by FTP.
It's like those good times of innovation and creativity are upon us again. Maybe now that we have a more tech based populace that we can focus also on personal privacy.
Back in the day big tech companies either stole the ideas or shoveled special interest money to acquire small intelligent niche groups. The rest of the public didn't even understand the internet.
Maybe this go around programmers can focus more on ethics rather than being a slave to the highest bidder.