Comment by beebmam

Likewise, I get annoyed when I hear people scream "publish the algorithm!" at social media companies. There isn't an algorithm. There's an enormous number of applications, some of which are data science/ML-based, that rely on stream and batch processing of incoming and pre-existing data to render recommendations and timelines. This is far more than an algorithm, this is an entire ecosystem, more complicated than a single individual can grok without an enormous amount of time on their hands (and the experience to understand it all).