"Self-obliviating technology" is apparently an established concept, but we hadn't heard of it before.

It probably only applies to a small niche of problems, and of course current economic systems fear the spectre of degrowth, but even so we all kind of felt... I dunno... relieved? after that talk. It showed a practical example of how to make computing sustainable: by solving problems with it in such a way that we can get rid of it altogether in the long term.