Earlier quoted context omitted.
Delusional to think Ads work only on Keywords. Where there is human attention, there will always be ads. The more context, the better ads.
"Attention is all you need"? Joking aside, there's no reason AdWords can't become AdWordVectors and be even more effectively targeted.
Keywords will still be around at the user interface for people buying ads, they are easy to grasp. Part of the secret sauce is getting those keywords mapped into the right entities in a sort of knowledge graph of things you can spend money on that is also connected to all the content of the places you can serve ads on.