Debunking Sigma's claim to X3 Foveon resolution

Dan, a commenter at Photo Rumors, has this to say about Sigma's claim that is new SD1 SLR will reach 46 megapixels on a 23.5×15.7mm sensor: bunkum. I'm willing to give Dan the final word on the matter but if you need more convincing, head over to Photo Rumors and read Dan's lengthy explanation on why Sigma can have its own sensor but can't have its own field of mathematics.