> I'm sure someone at booking a/b tested these things and saw an increase in revenue. I know people who used to work at Booking.com. That's exactly what happen

> I'm sure someone at booking a/b tested these things and saw an increase in revenue. I know people who used to work at Booking.com. That's exactly what happened. From what I can gather, you're not allowed to make changes to the site without running a test.