I think that's Brett and Andrew (left to right) out there in the thin air with Yosemite Valley below... Waaaayyy below.  If you look closely, you can see some evidence of civilization down there, streets, buildings, trash, graffiti...

Up here the air is clear and the sun intense despite the fact it's mid-September.  You can't quite see Yosemite Falls but it's in there on the far wall somewhere.