I generally dislike the "AI always come into conflict" idea, but I can dismiss that as "The Reapers had a flawed conception of reality and were acting based on their biases." It's not that AI will always compete with organics... it's that the Reapers were programmed to believe they would, and acted out their programming to purge the galaxy every 50k years, not having the inclination to grow beyond it.

I almost wish they'd boiled the thing down to a logic puzzle, or maybe just showing them Rule 34 on the internet of geth sex-fetishists.