Kimberly ThorpeOh, so this is what they mean by "Bush's brain."So, you're busy reading this blog at your desk (or on your phone ... at a stop light ... or in the HOV lane). At the same time you're replying to an e-mail, checking your voice mail, answering a coworker's question and doing whatever it is you do to make a living when you're not skipping work on a day like this. Bet you're pretty proud of your ability to multitask.Don't be. You may have a good brain, but it's not that good. In fac
