Think anybody would mourn? No, didn't think so. On myDedham, Brian discusses what looks to be an interesting book by an MIT professor who imagines wiping the slate clean at the Dedham Mall, the Burlington Mall and Revere Beach and "transforming" them into modern-day downtowns with not just shopping but housing. Hmm, maybe the Natick Mall was onto something, after all? Right. Let's not get too carried away now.