> This is the kind of solutions we need to prioritize - low effort, high impact. And I fully agree, but we have a lot of "technical debt" in our society. We ha

> This is the kind of solutions we need to prioritize - low effort, high impact. And I fully agree, but we have a lot of "technical debt" in our society. We have to keep supporting our existing "software", and fix all critical bugs, but we should also dedicate some time to refactor the society, even if it requires building version 2.0 from scratch, adding only these libraries that make sense. As far as optimizing power usage in data centers - armies of engineers are already working on it, and there is really not much more we can gain there, but changes in software, to be more efficient, simpler and less bloated is something that would have a large impact. This however, as in the case with the light bulb, requires coordination of many different people/companies/technologies. This will simply be impossible not because it's hard, but because our society spends too much effort on making stuff look great, and making sure that we can be tracked by advertisers so they can sell us stuff we don't know we need or want.