The Autumn of the Multi-Taskers argues that multi-tasking doesn't really work, that by trying to do so, we're doing less, and burning ourselves out at the same time.
Multitasking messes with the brain in several ways. At the most basic level, the mental balancing acts that it requires—the constant switching and pivoting—energize regions of the brain that specialize in visual processing and physical coordination and simultaneously appear to shortchange some of the higher areas related to memory and learning. We concentrate on the act of concentration at the expense of whatever it is that we’re supposed to be concentrating on.Perhaps worrisome that I managed to get this read while developing and building (more the latter than the former, but ...). I find developers practice multi-tasking quite a bit, and I wonder sometimes, if it's as effective as we might like it to be.
Via Gruber / Rands.