Can't back this up but I am convinced the last two losses, and probably more, were mainly due to psychology and not talent.
BUT... even as horrible as the 2nd half was in that last Niner game the Rams DID come to play, they proved it in the 1st half. I believe the Rams have wisdom and a plan to defeat the physical edge the Niners have... they just can't allow propaganda to take root.... and that for 4 full quarters.