[ajiang]

YC 2005-2014 = Doing things that don't scale

YC 2014+ = Making the magic of PG, Jessica, Sam et al scalable

[tptacek]

That's the whole idea, right? "Do things that don't scale" means not letting future logistical concerns get in the way of discovering a viable market. But once you do find a good one, you scale the fuck out of it.