Any blogger will tell you that there's a qualitative difference. NOTHING is the vast, ultimate, universal vacuum, home only to a foam of virtual quanta and the occasional cosmic ray. Nothin' is a lot smaller. Homier. Sort of like when you were a kid, and you were up in the attic messing around with your brother's old camera equipment or hiking gear, and your mom asked you what you were doing, and you said nothin'.
It's more temporary. And productive. Think of it as a brief incubation period, where you're goofing off. Daydreaming, looking around at all the cool stuff. Who knows what you'll find?