I gotta say, "a company designed to grow fast" is not only more concise, but broader and more on point than Steve Blanks' definition ("an organization formed to search for a repeatable and scalable business model"[1]) An epic essay with tremendous depth. Love the ending: "A startup founder is in effect an economic research scientist. Most don't discover anything that remarkable, but some discover relativity." [1] htt…
I gotta say, "a company designed to grow fast" is not only more concise, but broader and more on point than Steve Blanks' definition I would prefer just to say that the definitions are "different" :-) Blank's focus is on startups that are discovering their business model. PG's focus is on startups that are designed to grow fast. Those two groups of organisation overlap, but are not identical.
Though I highly doubt PG would in fact define "startup" as "a company designed to grow fast". Pretty sure he would agree there's also a "search for a business model" aspect to it.