Nowadays, the ability to do multiple tasks at once is highly common. It's one of the digital revolution's most annoying buzzwords: multitasking. Intel and AMD are launching their processors with multiple cores right now. Both promises to let users be more efficient at multitasking. And so we believe we are now better at multitasking our everyday life. Is it so?
Multitasking means doing more than one thing at the same time. Well...likewise it does means doing at least one of them poorly. "Human beings can handle two simple, low-level cognitive tasks at once, like filing and listening to the radio," says Dr Hollowell.
This means that reading a report (higher-level cognitive task) takes dedicated brainpower to perform optimally. So watching at TV will diminishes your comprehension and recall of what you have read. Research shows that multitasking is just a series of constant microinteruptions and stop-starts, all which tend to reduce both mental and motor performance.
Perhaps one day we will have 2 brains (or 3, 4, 5 etc)? My...then we really need a major overhaul. Perhaps an instant evolution. So for the time being, be content with your blackberry and you Dell Core 2 Duo PC. Until you have 2 brains, see you again Jack of all trades but master of none! =)