0010: Multitask With Caution
Working on multiple tasks is decreasing your chance that you will be blocked and increasing the chance that you will become a blocker.
Furthermore, every task you are working on is adding additional cost required by context switching. In the most extreme case, you may spend all your day just context switching and not have any time to get to the zone and get your job done.
Multitasking is similar to juggling. When you overload yourself, all balls could end up on the floor, not just the extra one.
People who claim that they are good at multitasking are usually not good at multitasking. (citation needed)
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