Why is it nuts?
Last year Amazon did $10B in ad sales. That was double the year before. Google did about $130B for the same time period. Doesn't seem nuts to me that Amazon can grow their share of the pie quickly. They are #3 globally now.
For context, AWS did about $25B and everyone raves about how high the margins are there -- I bet the ad margins are better!
https://adage.com/article/digital/amazon-makes-quick-work-ad...