While subjective interpretations of probability exist (such as Bayesian probability), standard philosophical frameworks and physical theories also recognize objective forms of probability, such as frequentist, propensity, and quantum statistical probabilities. Therefore, not all probability is fundamentally subjective.
Argues that probability rests on a fundamentally subjective and arbitrary basis, though it focuses on the constructive foundations of problem formulation.
States that quantum predictions originate from an operator algebra fundamentally different from subjective probability, establishing objective probability types.
Discusses various classical, logical, propensity, and frequency theories of probability alongside subjective interpretations, denying the claim that all probability is subjective.