That's the point - to explain how people in the field are thinking about this stuff. Most people outside SV don't know what the experts in the field are saying. Indeed, many people in SV don't know this ;) If you already know all of this, you're not the target audience.
That's fair enough. It's a running joke with applied ML people that half of your job, if you have any sense of professionalism, is convincing possible clients that no, they probably don't need to use a 41 layer DNN to send a follow up email.
