HPS100H1 Lecture Notes - Lecture 3: Superstring Theory, M-Theory, Formal Science
5 Jan 2018
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Empirical science (social science or natural science)-falliable: problem of sensation, problem of induction, problem of theory-ladenness. We believe that some knowledge is better than the other. Acceptance, use, and pursuit: acceptance: a theory is said to be accepted of it is taken as the best available description of its object. Cannot accept two incompatible theories at the same time, but can be simultaneously used and pursued. Earth- flat or round: use: a theory is said to be used if it is taken as an adequate tool for practical application. Old would not necessarily be replaced by new one. General relativity, quantum physics, classical physics (despite we don"t believe this as description of reality, but still in practice: pursuit: a theory is said to be pursued if it is considered worthy of further development and elaboration. Superstring theory (all known particles and fundamental forces are vibrations of tiny supersymmetric strings), m theory.
