Earlier quoted context omitted.
> For it to be a startup, you have to have a large target market. Making up your own definition of startup ? A start-up is just a newly established business.
Actually, I'm using http://www.paulgraham.com/growth.html That's like calling a newly established barber shop a startup. It's not. The GP is working on a podcast hosting company. The market for people who want to host podcasts is miniscule. Large enough to sustain a company, sure. But that's not a startup.
Besides, there have been multiple "podcast startups" (by the valley-definition of startup) in the past.