http://hn.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion/stories/36811554
If there is another solution which could have been done in half the time, that's cool. But it wasn't required . Identifying such an alternative, if one exists, could be done if you have any data, without having to do an alternative universe A/B test. Though since the proof is in the pudding, to REALLY be sure maybe it would.