In this context it's a very important point that there isn't one Internet and there isn't one "we." Unless you strictly mean the human race has yet to go extinc

In this context it's a very important point that there isn't one Internet and there isn't one "we." Unless you strictly mean the human race has yet to go extinct due to starvation. A lot of starvation events have of course occurred across many different nations, peoples, civilizations. Europe, as one example, was numerous times ravaged by extreme starvation events that collectively killed millions of people across the 19th and 20th centuries. I think your agriculture concerns are well placed. The various Internets have gone down routinely for all sorts of reasons.