I don't see how the post assumes that investment is zero-sum; to me it reads, rather, as assuming that capital isn't unlimited, which isn't the same thing. > I

I don't see how the post assumes that investment is zero-sum; to me it reads, rather, as assuming that capital isn't unlimited, which isn't the same thing. > It's not, because our economy works on wealth creation not wealth extraction. This can be true of the economy overall, but false of particular actors or actions within the economy, as in the case of rent-seeking, for example.