The complicated business-model considerations for driverless cars have already kicked off an intense game of three-dimensional chess, and Google could obviously lose.

FORBES: Google��s Job One

Because clearing and settlement are complex activities and their interplay with trading is not well understood, there is plenty of scope for interested parties to lobby furiously with arguments as bamboozling as three-dimensional chess.

ECONOMIST: Stock-exchange mergers: Three-dimensional chess | The