Fraught and messy though an artistic life may be, is there a drug that can induce the euphoria as energizing as that intensely fragile moment when the muse passes through one and the artist becomes the simultaneously perfect and flawed instrument of expression? No, there is not. Even as the inner voices battle it out, intoning “You suck!” and “Eureka!” in equal measure, creation is – like the loosest of teeth just begging to be toggled by the curious tongue – a joyous torment, in whatever form it takes.
David Rakoff in Half Empty 

Startups have that, too. Plus, there’s money and you build things.