If tragedy plus time equals comedy, what does Yahoo plus Time equal? Maybe the same thing, or worse. News that the $1.5 billion publisher of magazines including People is weighing a bid for the core of the troubled $30 billion internet company evokes memories of the disastrous combination of AOL and Time Warner. Combining print and digital may make more sense now than when the $160 billion merger was hatched in 2000, but the financial contortions certainly don’t.