Everything is up for grabs.

"Death to the mainframe," says Amazon's James Hamilton.

Accounting is a slippery beast.

IBM is currently struggling with several key (and some might say) controversial issues.

Two years out of bankruptcy and facing down $19 billion in debt, AAL executives continue to spend billions to repurchase their own company shares — to the detriment of shareholders.

The entertainment and media business is in the throes of disruption, which has led some people to speculate about some major acquisitions in the pipeline.

I got interested in game theory in 2011 because of my interest in poker. Some of the better players were using it, and it looked like a fun study. Well, if it's possible to have a quasi-spiritual epiphany as an investor, game theory was mine.