I wrote a post about the so-called "law of advertiser atrophy": https://hua.substack.com/p/everything-i-have-ever-learned-about https://hua.substack.com/p/every

I wrote a post about the so-called "law of advertiser atrophy": https://hua.substack.com/p/everything-i-have-ever-learned-about https://hua.substack.com/p/everything-i-have-ever-learned-ab.... TLDR: the author correctly identifies an issue, but misdiagnoses its root cause and how it will play out moving forward. In fact, I would endorse short AMZN, long GOOG/FB, as an investment strategy (but not as investment advice)!