Why don't we then call plans what they really are, namely guesses? Rename your business plans to business guesses, financial plans to financial guesses, and strategic planning to strategic guessing. Now you can stop worrying about them that way. They are just not worth the stress.
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Turning guesses into plans, you enter a dangerous territory. Plans allow the past to control the future. They put blinders on you. "We are going this way because we said we will go this way." And therein lies the problem: plans are incompatible with improvisation.
And you should be able to improvise.
Think about when you do most of the work? If you are like most people, the answer will be - at night or in the early morning. And it is no coincidence that this is the time when nobody is around you.
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Breaks break up your work day. 45 minutes of work - and then you talk on the phone. Another 15 minutes - and you have time for lunch. After another hour, you are in a hurry for the afternoon meeting. As a result, the clock is already six in the evening, and you had only a couple of hours without breaks to do your job. You cannot do important things in the “start-stop, start-stop” mode.
Source: https://habr.com/ru/post/104397/