Comments by "James Power" (@jamespower5165) on "Jared Henderson" channel.

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  18.  @sharonbre9347  Certainty nothing that hasn't been comfortably superseded in the logicist tradition. Take Descartes's inability to understand how pain or any other mental state can have a physical reality without postulating an independent reality of purely mental phenomena. It never occurred to him that what is physical isn't just stuff. That stuff can be arranged in logical configurations and the properties of those configurations will also make a difference to the physical reality. That, brain states, can make up mind. Or his saying that if a being with desirable qualities exists, an optimal such being must exist. Does that mean we can simultaneously have a spear that can pierce any armor and an armor that can resist any spear. Because there are spears that can pierce some armors, and armors that can stop some spears, the optimal counterparts also exist? It's a rookie mistake and one nobody trained in logicism, would ever make. Or take Hagel going on about existence and non-existence as predicates and then literally building up a tangle of concepts to build on this illogical foundation. In logicism, we do this very easily. Existence is not a predicate because then nonexistence would also have to be(because the negation of a predicate is also a predicate) In reality we never talk about existence or non-existence, only the unsatisfisability and satisfiability of certain predicates. When we say a round square is nonexistent we really mean the predicate 'round square' is unsatisfiable. We have nothing to learn(on this head) from the pre-logicists. Sometimes they asked good questions and their mistakes are illuminating. But their contributions are no longer directly valuable in any way
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