> because their test doesn't actually work all that well (I actually don't know enough about this part, as their work is mostly secret) they have to pivot a bun

> because their test doesn't actually work all that well (I actually don't know enough about this part, as their work is mostly secret) they have to pivot a bunch of of their tests to using a different company's test machine This is like if every time you fetched an Uber, a yellow cab showed up! Except for one market out of 200, where they run five black cars, in a small SF neighborhood.