The only narrow approach to "techno" is to subdivide into lines that the rest of the world won't understand. Thump - Thump - Thump -Thump pretty much sounds the same to most of those who don't follow scenester crap. And, if we approached it that way, things would likelier be healthier, especially if people dropped stubborn attitudes that clung to inaccessable and outdated technology. It's completely ironic when a "techno" crowd is opposed to advances in technology. Chuck D put it nicely in his last terrordome rant: "if you know a DJ who doesn't know what 'Serato' is ...run from him/her ..."
http://publicenemy.com/index.php?page=page3