I have found Isaac's work on the search function to make my time on manifold much more valuable (I've even paypaled him for it prior to this). Discoverability for older markets is so much better with it than without, allowing us to have accurate probabilities for lower interest questions while still taking less new user attention for them. It gives a much more information dense view than the normal Manifold search, which is beautiful. I have faith the further improvements he makes will be wonderful!
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Isaac's Blog Writing