By now, we all know that switching between tasks - multitasking - makes each task take longer and is PURE EVIL.
Here's an article that talks about the hidden costs of switching to our personal efficiency - they say that multitasking makes us stupid.
A growing body of scientific research shows that one of jugglers' favourite time-saving techniques, multitasking, can actually make you less efficient and, well, stupider. Trying to do two or three things at once or in quick succession can take longer overall than doing them one at a time, and may leave you with reduced brainpower to perform each task.
...
Yet we're clearly engaged in a long-term trend toward doing more of it. Some 45 percent of U.S. workers feel they are asked or expected to work on too many tasks at once, says a study of 1,003 employees by the Families and Work Institute in New York.["Multitasking makes you stupid, studies say", By Sue Shellenbarger, The Wall Street Journal]
