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All of this is publicly known. See: fortelabs.co/blog/the-story Once you understand this context, criticism like “PS is bad for thinking” appear silly. That’s not the goal. That’s like saying “the Toyota Production System is bad at making art.”
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The goal of PS is to reduce the waste of constantly going back to source material. You don’t want to do over-eager summarisation. But you also don’t want to do too little, which means you would have to go back and reread the source text all over again. That is muda.
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I used many of its ideas in the series. But of course, this is a TEXTBOOK. It covers everything there is to know about an entire academic subfield. Everything from expected utility calculations to cognitive biases, to philosophical treatments in the topic.
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I used only a subset of the ideas in my series. It’s no accident that those are the ideas I remember best. Because I wasn’t yet doing PS, I have no ability to recall any of the other ideas in the book. This is waste.
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I am likely going to have to reread whole sections of the book, if I want to reference it again. It’s almost as if my earlier research never happened. I feel those hours keenly.
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One reason I look closely at the output of productivity writers is due to stories like this. Do they have a history of producing highly integrative, novel work, at a high enough throughput? If they do not, it is not likely that they have ideas valuable enough to offer me.
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Now, they don’t have to be the best at this. But I immediately look for something in their prior experience that maps to the pains I feel as a knowledge worker. Do they get the fundamental problems with what we do? Sometimes you need a large enough body of work before you do.
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And if you haven’t hit the point where you’ve read 7 books and 20 research papers for one project and you need a way to reuse all of that thinking in the future, or else you burn out, then perhaps I’ll wait until you have that lived experience before I listen to you.
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So, back to progressive summarisation: the principle here is more important than the trappings. The principle is: reduce muda in your knowledge work. How you achieve that, exactly, is up to you.
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