The second sentence - perhaps paraphrased as "we can't feed or organize ourselves without precarious levels of technology" - sort of tempers the enthusiasm in the first.
> Computing saves millions of lives on a regular basis. Can't run modern agriculture or medicine or government without it.
No, we couldn't have. Computing has killed us all.
Good talk I watched the other day https://www.youtube.com/watch?v=5WPB2u8EzL8&feature=youtu.be
Griping about the evils of the current gripeable is a lot of fun, though. One may even argue it's the more important of the two.