I'm pretty grateful for what I learned today. I learned that there are physical barriers between residential and commercial structures. This may reflect socioeconomic separation. I never knew why those were there as I drove along the freeway. There is a country club on top of a landfill. L.A. is multicultural and diverse--as well as racially segregated. I learned a little bit about the history of the San Fernando Valley--why certain lands were purchased and why one district is still underdeveloped. Certain districts in the Valley required workers with skills not based on education. These skills are currently not needed. Unemployment rates are deceptive. New employment does not mean better wages, nor does it reduce commuting time or increase quality of life. Immigration is a many layered topic as well. There are reasons for naturalization that are quite compelling. Good notes are good.