And let's say this was when Khan Academy was a smaller organization, when there were only five people in the organization. And I find, and I'm surveying the entire population, so years of experience, the entire population of Khan Academy, because that's what I care about, years of experience at our organization, at Khan Academy. This is when we had five people. And I were to go, we're now 36 people. I don't want to date this video too much. But let's say I go and I say, OK, there's one person straight out of college. They have one year of experience, or recently out of college, somebody with three years of experience, someone with five years of experience, someone with seven years of experience, and someone very experienced, or reasonably experienced, with 14 years of experience.