Philosophy, music, and food, none of these are an industry.
Yes, there are industries using thought, music and food to produce money, financial games, and imperial bodies. However, a sincere, talented and dedicated human who spends a good amount of energy dissecting thoughts, composing or interpreting music, or creating food of value, are merely contributing to the most wonderful aspects of life that we could ever experience.
Thinking, singing, and eating are not industries.
Sila Blume 
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