Recently I stole the soapbox in another person's review of Shampoo Planet to pontificate about my personal reader's theory of Douglas Coupland. JPod was the first Coupland novel I read, and it is also my favourite. We all react to Coupland differently—i.e., JPod is my favourite, but some of my friends hate JPod with a passion and love Girlfriend in a Coma or Eleanor Rigby. Despite the fact that Coupland always deals with the…