Late to the party but this is the same point of disagreement I had with the video, though overall it was fine. Why do these performance efforts and rewrites at

Late to the party but this is the same point of disagreement I had with the video, though overall it was fine. Why do these performance efforts and rewrites at the companies he listed take years? How complex is the uber eats app anyway? Well, it's because most engineers at those (and other) companies do not care or know about performance, and when it actually matters to the business, have to be dragged kicking and screaming to a slightly better state by the minority who do. It won't last long (hence the continued twitter examples).