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" When you attempt to multi-task, your focus, attention, and energy is spent switching between your tasks and re-orienting yourself to exactly where you were before you switched. It’s like swimming against the current. Every time you take a stroke, you might only get one quarter of a stroke forward because of the current, and sometimes you might even go backwards despite your best efforts. It’s an inefficient use of your time that ends up in your becoming well-versed in the beginning stages of many tasks, but never quite seeing them to completion. The better approach is to be willfully ignorant of everything else you need to do, while giving full attention to one task at a time. In a sense, a lumberjack can only chop the tree in front of him or her, and can’t do anything with a bunch of half-chopped trees. Chopping the tree in front of you will allow you to make better progress on everything more than actively working on it while multi-tasking. "
― Peter Hollins , Learn Like Einstein: Memorize More, Read Faster, Focus Better, and Master Anything With Ease… Become An Expert in Record Time (Accelerated Learning)
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" The Singaporean study also identified three specific conditions that promoted productive failure. First, failure is best when it promotes a sense of challenge and engagement versus frustration. Frustration, of course, is the feeling that you are going nowhere at top speed, so there has to be a sense of progress and achievement. You can’t just hand a child a calculus equation and expect productive failure. It has to be within their capabilities and they have to be able to see improvement. Second, failure is best when learners have the opportunity to elaborate on what they are doing and thinking, as was done in a group setting during the study. When you can narrate what you’re doing, instead of toiling away in silence, it can help shed light on your efforts because you’re actively thinking about what you’re doing and analyzing it. Often, thinking out loud leads to solutions that wouldn’t have appeared otherwise. Third, failure is best when learners have the chance to compare solutions that work, and solutions that don’t. This is what happens when you aren’t shown the exact path every single time. You recognize the red flags of failure and gain intuition when something seems right or wrong. "
― Peter Hollins , Learn Like Einstein: Memorize More, Read Faster, Focus Better, and Master Anything With Ease… Become An Expert in Record Time (Accelerated Learning)