REGULARLY CHECK IN ON HOW THE TOUR IS EVOLVING. This is not a onetime conversation. Remember that trust is built by consistency over time. - Reid Hoffman

It’s tempting to assume she achieved this despite the “Nos.” But in truth, each of those 148 “Nos” was a clue that ultimately made her business even stronger. Some sharpened her view on who her user was — and who her user wasn’t. Some helped her grasp how her competition might think. And some gave her an early warning about the ways her company might fail. At the end of the fundraising process alone, Kathryn had a roadmap marked with every potential pitfall she’d need to navigate around — and the unexplored territory she could explore ahead of any competitors.

Technology innovation is a key factor in retaining the gains produced by business model innovation. After all, if one technology innovation can create a new market, another technology innovation can render it obsolete, seemingly overnight. While Uber has achieved massive scale, the greatest threat to its future doesn’t come in the form of direct competitors like Didi Chuxing, though these are formidable threats. The greatest threat to Uber’s business is the technology innovation of autonomous vehicles, which could make obsolete one of Uber’s biggest competitive advantages — its carefully cultivated network of drivers — essentially overnight.

Blitzscaling is a strategy and set of techniques for driving and managing extremely rapid growth that prioritize speed over efficiency in an environment of uncertainty. Put another way, it’s an accelerant that allows your company to grow at a furious pace that knocks the competition out of the water.