Misha comments on How to pick your categories - Less Wrong
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Comments (22)
How does one obtain a high-dimensional featurespace to begin with? Can one bootstrap from a one-dimensional space?
I can't think of any satisfactory way to do this right now.
You shouldn't want to have a high-dimensional space. High-dimensional spaces are hard to work with, it's just that they come up often. You basically obtain one when you look at an object or concept or what have you, then think of everything you could measure about it and measure that.