Alternate realities around us

For those who find it hard to believe in alternate realities (see my blog of 31 Dec. 2010 and references therein) I would point to the members of the republican party in the united states.  They see a world very different from the one I see.  This even reaches into the hard sciences. Earthsciences: they reject climate change.  Biology: they reject evolution.  Physics: they believe in a young earth and universe.