Right... and GDP being a bad metric (for most decisions) doesn't have any relevance to the discussion. It doesn't imply anything about the thing it measures.
By analogy, good engines produce power. A speedometer measures the engine's power under a set of conditions. However, a speedometer is not (by itself) a good way to measure an engine because there are other factors you care about. The fact that a speedometer is a bad measure of engine power does not mean that engine power is unimportant or bad.
If I said, "high max speed means good engine," or "high GDP means economy is working well," your comment would be relevant.
I did not say that. I said "the overwhelming majority of transactions in an economy are of mutual benefit to the transactors."
By analogy, good engines produce power. A speedometer measures the engine's power under a set of conditions. However, a speedometer is not (by itself) a good way to measure an engine because there are other factors you care about. The fact that a speedometer is a bad measure of engine power does not mean that engine power is unimportant or bad.
If I said, "high max speed means good engine," or "high GDP means economy is working well," your comment would be relevant.
I did not say that. I said "the overwhelming majority of transactions in an economy are of mutual benefit to the transactors."