I learned about this nice principle from agile software development. Basically, that when thinking about how much you’ll get done next week, what you got done this week is a good proxy. Sure this week was different because you had that external presentation and an offsite, a bug to fix on live and Amy was sick. But the reality is things will interrupt you next week too. Just like the weather, what happened before is a good first guess at what will happen next.
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