No, no, no. The marginal revolution of the 19th century solved that question. Value is not determined by what it cost to do something. For eg. You can dig deep

No, no, no. The marginal revolution of the 19th century solved that question. Value is not determined by what it cost to do something. For eg. You can dig deep in south Africa to mine diamonds, but the bits of subterranean rock that emerges along with it doesn't have the same value. Value is always subjective. If you paint Monalisa it has a different value from the one in the Louvre