"You can't teach speed."
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I don't know who said it but it's true. It's a sports reference. Speed is really quickness. You can't teach someone to run a 4.4 forty. They just can.
It also applies to startups. I was giving a presentation at Shotput Ventures recently and a word popped into my head that I had not used in a long long time. Veloctile (və-ˈlä-sə-ˈtī(-ə)l). It's a word I made up. I made it up to describe a core characteristic that a person needed to possess in order to succeed in a high growth startup. A person is veloctile if they have the ability to act quickly with little information in a rapidly changing environment. They just can. They do, and they do the right thing. And if they don't have it you can't teach it.