Does this sound familiar to anyone else? (Yikes.)

Back to physics. I ran across this dreck on the blog Cosmic Variance, which is spearheaded largely by (relatively) famous physicist - and popularizer thereof - Sean Carroll. It's a post about the recent Wilkinson Microwave Anisotropy Probe results. Non sequiturs abound, but here's the best quote:

The WMAP folks have produced an elaborate cosmological parameters table that runs the numbers for different sets of assumptions (with and without spatial curvature, running spectral index, etc), and for different sets of data (not just WMAP but also supernovae, lensing, etc). Everything is basically consistent with a flat universe comprised of 72% vacuum energy, 23% dark matter, and 5% ordinary matter.

Emphasis mine. The universe is flat? How can physicists say on the one had that spacetime (odious concept) is curved (also ridiculous) on the one hand, and then turn around and try and convince us that the universe is flat? It sounds familiar... Hmm... Christopher Columbus anyone?