I'm serious, someone explain this to me. I understand, I think, how the Fed can "buy" mortgages, but how exactly does that make the interest rate go down? My only guess would be that mortgage lenders who sell those mortgages now have cash to lend again. More money available for the same potential home buyers means lower rates based upon supply and demand?
But how in the world are mortgage interest rates the problem? They are at all time lows.