I don't know why people are obsessed with equity (physical or financial) capital. Capital productivity theories should be rejected on the basis that they fail

I don't know why people are obsessed with equity (physical or financial) capital. Capital productivity theories should be rejected on the basis that they fail to consider input materials. The problem with this is that ultimately all value is derived from land or better yet, the universe and the laws of physics itself. Those factors were not created but we can play attribution games and pretend they were.