I don’t think that matters. Out of the Dotcom rubble, we got a lot of useful ideas for tools even though the actual tools all got thrown away. It was the ideas and the “hey, look at what is possible” that survived i.e. Linux came of age properly and now the world runs on it.

AI will quickly pollute itself, but the infrastructure will survive. That most of it will be thrown away is perfectly ok, the ideas will live on.