The same is true of wealth generally. (c.f. my favorite PG essay: http://paulgraham.com/wealth.htm http://paulgraham.com/wealth.htm ) Just like "Post a commen

The same is true of wealth generally. (c.f. my favorite PG essay: http://paulgraham.com/wealth.htm http://paulgraham.com/wealth.htm ) Just like "Post a comment; people shower it with karma" is positive-sum activity, many efforts in the wider economy are positive-sum. That's why we don't eat grubs and use leeches for treatment.