DisPixelation

from geekologie...

They took a 13 megapixel photo, down rezzed it twice to 8 and 5 megapixels, and then blew them all up to 16x24 prints. They then took the three prints to the streets of New York and had passersby see if they could tell the difference. Turns out only one person correctly put them in order of megapixels - a photography professor - and 95% couldn't even tell the difference. So even though more megapixels sounds better in theory, 5 is pretty much good enough for whatever needs you might have.