From the article: > According to Musk’s calculations, he could undercut existing launch companies by building a modest-sized rocket that would cater to a part

From the article: > According to Musk’s calculations, he could undercut existing launch companies by building a modest-sized rocket that would cater to a part of the market that specialized in carrying smaller satellites and research payloads to space. I think this must be describing the Falcon 1, which was not an economically successful design, although it appears to have been an effective testbed for the the Merlin rocket engine. The Falcon 9 is in no way a modest-sized rocket by modern standards. So anyway, I don't think the article is wrong exactly, but I think it may be overstating the case.