Looking back (at the UK) I'd say there were 2 key splits. The first was around 89/90 when clubbers (into house, US, soul, balearic) and ravers (more banging, less snotty) went in completely different directions (there was a lot of snobbery uptight city cool v small town teds etc - all these different mutant hybrid tribes emerged out of it. I noticed this a lot cos I grew up west London where the key word was "attitude" (these days that would be hashtagged) and everyone took themselves v seriously esp the music/fashion but I was pretty innocent and had no idea what was going on. Opting to do my degree in the middle of nowhereville (Devon), I was suddenly exposed to ravers, new agers, rural freaks and all sorts who were into day glo or dreads or baggy anything - the more proggy Guerilla records crowd had pony-tails. the birds were more into acid jazz, de la soul and stuff. And then the second split was around 92/93 when the ravers split into happy and dark side. and then the law caught up and you know the rest. FWIW (personal nostalgia aside, speaking objectively) I think the early 90s were a magical time - just the variety of scenes and music and creativity behind parties, people designing their own dance spaces, new ideas and thinking, places with camouflage netting in secret locations and awesome lighting that someone, somewhere had rigged up and the relative down to earthness of all it, DJs turning up with carrier bags of records, often not really having a clue, nobody did. but of course it couldn't last, people starting making loads of money out of it and then once Sasha and co started to become THE stars of the show, it was downhill thereafter. But a lot of the backroom, micro scenes survived and perhaps that diy spirit is what we need to get back to? I'm sure there are kids doing their own thing somewhere out there and the less old b'stards like me know about it, probably the better