value 4 value is simply a way of describing voluntary exchange where there is no defined price. it does not imply equality of exchange. it just describes that there is an exchange representing the value each chooses to be appropriate at that time.
The podcast may have more content that could have been presented and the listener could have had more money they could have sent but the point is that each had a choice and participated voluntarily
price is what you pay and value is what you get
There will always be an 80/20 distribution for creators from their listeners. Or, as has been pointed out often, more likely 95/5.
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