Squilliams Discovery! The greatest flaw in the PS3/360 HW launch graph!!!!

[miz1q2w3e]

i don't get what you're trying to point out with the graph...
i see some parts where the X360 is above PS3 numbers and some the opposite :/

i know they aren't lined up at the same time frames (X360 is shifted a year) but i don't think i'm seeing what i'm supposed to be seeing :(

could somebody explain? :)