I want to know the answer to the following question:
What kind of prediction does the assumption that black body radiation is thermal lead to?
All the background I'm provided with is that "The assumption that black-body radiation is thermal leads to an accurate prediction: the total amount of emitted energy goes up with the temperature according to a definite rule, the Stefan–Boltzmann law (1879–84).". Is that enough to answer the question?
Answer: yes