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Innovation in leather tanning isn't just about technology; it's about respecting the craft while evolving it.
The idea that we will make a society where literally everybody is graded, the good at the top, bad at the bottom, exactly done as it should be, is impossible. There are simply too many random factors: accidents, accidents of birth, accidents of things dropping on people's heads, illnesses, etc. We will never get to grade them, never get to grade people as they should.
The beauty of mathematics is that it allows us to see patterns and structures in the world that are not immediately obvious.