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| Tags: 1456, except, gravity, influencecausation, probable, quantum, quotderivativesquot |
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From Osher Doctorow
Now compare the various other types of "derivatives", including the Lie derivative of funcitons, vector fields, differential forms, and tensors, with the simplicity of the Probable Influence/Causation (PI) "derivative", that is to say (Probable) Causation P(A--B) or P' (A-- B): 1) P(A--B) = 1 + y - x, y = P(AB), x = P(A) 2) P' (A--B) = 1 + y - x, y = P(B), x = P(A), P(B) = P(A) Equations (1) and (2) are in an obvious sense linear or antilinear (linear in the second argument, antilinear in the first), which is especially true for (2) and can be shown to be true for (1) when (1) and (2) coincide, etc. Most important, + or - only are used in PI, while the various generalized "derivatives" of other types used various multiplications together with additions or subtractions. For example, if L_X or LX for short is the Lie derivative with respect to X: 3) LX(w) = i_X dw + d(i_X w) for differential form w. So the other types of "derivatives" introduce greater complexity and complications, but also they typically introduce geometry as "coding" for Causation. A typical such introduced "geometric Causation" is nonzero curvature of space introduced via nonzero Lie brackets or connections. The "object" so introduced is "supposed" intuitively to account for Causation, but the code involves not only + and - but multiplication and/or division and other things. It is roughly analogous to using complex numbers to solve real equations and then forgetting to translate back to real equations, or worse still not knowing how to translate back. Osher Doctorow |
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