The same way cholesterol clogs arteries, bad drivers clog freeways. People with persistently high cholesterol take statins to lower them. A good public transit system is the statin that will take some of the lousy drivers off the LA freeways and keep the traffic flowing. When that happens, I won’t resent my family for inviting me to endure LA traffic for an overpriced restaurant dinner, and I won’t have to end a very exciting freeway race with a Ferrari in the hands of a very capable driver just because the DAMN FREEWAY IS CLOGGED AT 2 PM ON A SATURDAY!!!!