I think it might be safe to say that I thought Orly's Cosmic FX collection was awesome to begin with, but I own three of the colors and I love every single one of them to pieces. Look at this one.
On a lot of people, I know that It's Not Rocket Science read as a really, really glittery puke/slime/snot green. On me, it's very grassy. It reminds me of leaves, due to its texture and depth (see how it seems darker beyond the shimmer plates? See how when the light hits it, only the center turns a bright lime green? A deep, olive green color in shade?
Frankly I'm curious to see how this polish will hold up against Orly's blue-tinged green version, Meet Me Under the Mistletoe (I haven't swatched it yet), but I imagine that the colors would have a lot in common.
This is two coats (thickish: I've discovered that thick is the best way to get all the shimmer particles where you want 'em) and I had no problems with this. FYI (although most of you know this already), ChG's Zombie Zest is a dupe of this color. So is SpaRitual's Optical Illusion.