If Apple makes "extreme" mode easy to turn on and off, maybe then people will use it as a default, and quickly turn toggle it when they're doing something like banking, or interacting with something demanding additional security or scrutiny. If extreme privacy was commonplace, wouldn't that deny info to the websites, and thereby de-fang the cross-scripting excess of the Web? It might allow for a cooling of the rhetoric - the arcane techniques of the web. It might lead to a kind of detente...

12 petabytes in 22,292 seconds gives a transmission speed of 540.5 GB/s.

The time divisor should include the media prep and read times -- burning 2.5M DVDs and delivering them to the 747, then carrying them to the destination and reading them -- increases the 22k seconds in-the-air transmission time greatly.

Note we don't include the time it takes to construct the 747 or the DVD burners and readers, just like we don't include the time it takes to lay cable or install wireless cards.