Undergrad Emission probability in blackbody spectrum derivation

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The discussion centers on the concept of emission probability in the context of blackbody spectrum derivation. There is a clarification that the emission probability, denoted as p, is not a probability density but rather a straightforward probability indicating whether emission has occurred. The presenter does not explicitly state this distinction, leading to some confusion. Understanding this difference is crucial for accurately interpreting the blackbody spectrum. Overall, the emphasis is on correctly defining the nature of the emission probability in this context.
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No, ##p## is not probability density. It's just the probability that emission happened.
 
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I am slowly going through the book 'What Is a Quantum Field Theory?' by Michel Talagrand. I came across the following quote: One does not" prove” the basic principles of Quantum Mechanics. The ultimate test for a model is the agreement of its predictions with experiments. Although it may seem trite, it does fit in with my modelling view of QM. The more I think about it, the more I believe it could be saying something quite profound. For example, precisely what is the justification of...

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