I didn't see anywhere where he said economic inequality is the sign of a good economy. In fact, I believe he's suggesting that there is a link between economic inequality and social inequality and he tries to offer a solution to delink the two.

The link is broken or it's not pointing to the essay.

I fixed it.

(The period was getting incorporated into the url; if you turn urls into links, it's not straightforward to say where they end.)

How about also supporting the <URL:http://google.com/> syntax that the RFCs use? It would let us submit the more tricky ones. It was invented because of the problem you're having; it's ambiguous whether the trailing dot is part of the URL or not.