After spending an hour answering a yes or no question, Is carbon-14 still increasing in the atmosphere?, I am concerned that I spent too much time giving insufficient background on a complex topic when the background was not required to answer the question. I think that one or two figures with a brief explanation would have been sufficient.
My question for meta is:
How much background information is required, at what point will it detract from the answer?
General answer preferred; specific critique welcome.