You'd' have to be a f****ing idiot to look at the pyramids and then conclude that they were built to warehouse grain. Carson may be a brilliant grain surgeon, but he's a f****ing idiot. His theory is an affront to common sense. It's the equivalent to seeing a Cummins ISX15 diesel engine and concluding that it was built by Co. Sanders to house mashed potatoes in all the vast, empty space of the combustion chambers.
He lacks basic, common sense. He is not fit to be President, and I like Carson, but his running is a complete joke. Let him be Surgeon General, but keep him the hell away from anything requiring basic analysis of what is readily apparent.