the chapter in "last night a dj" on techno is okay on facts, GARBAGE on analysis. the author says detroit techno was a subsection of--and lesser than--chicago house. WTF! now, i absolutely adore classic 1980s house, do not get me wrong, and in some ways, today's techno has more in common with tracks like "i've lost control" than "strings of life," but this statement is silly, especially when you consider that Cybotron's "Alleys of your Mind" came out in 1981 and "Your Love" came out in 1983, and not even on vinyl!
the fact is, both cities became aware of each other and vibed off each other starting in the mid 1980s. the detroit guys went to chicago to seel records, and bought records as well.