At my friend's house, I multiplied two four-digit numbers (2112 and 1984 - and no, the answer was not "Alex Jones" ) in my head and got the right answer (I did two digit and three digit numbers before and nailed them always, but never a thing like this before)!
I might draw some pics sometime and scan them to take you on a trip through my mental processes at the time, my math-handling can get a bit wacky, and it works great...
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I find support for the contention that Arendt is SEE in the fact that her Life of the Mind convincingly demolishes the "two-world fallacies" of Ti-egos like Kant, Plato, Hagel, Descartes, et. al., superbly positioning her as an LII's conflictor and causing those "radical subjectivists" to shed bitter tears as she neatly kicks their precious sandcastles into the waves.