Finally someone publishes something that sufficiently explains exactly what happened on the Deepwater Horizon on April 20. Thanks to The Times-Picayune.

The first story is that the NYSE system somehow broke down, and that's scary. There are going to be a lot of questions about program trading, because that's touched off the decline. If computers are running the world instead of people, people are going to lose confidence in the financial institutions.

— Carl Birkelbach, Chairman and CEO of Birkelbach Investment Securities in Chicago

HP: "68.1 Permanent Storage Full"
Me: Wonders why the printer is trying to permanently store things
Me: Recovers
Me: Clicks okay
HP: "68.0 Permanent Storage Write Failure"
Me: Wonders why the printer is trying to write to somewhere it knows is full
Me: Recovers
Me: Clicks okay
HP: "unknown.c, LINE = 0"
Me: Wonders whether HP actually put a unknown.c file in the firmware that causes errors in line 0 in this circumstance or if the printer is displaying the default message that occurs when the printer has no idea what just happened
Me: Decides it's the latter
Me: Reboots
Me: Repeat