I had been meaning to comment on ’s “Why can’t we even conceive of writing a new OS today” post. Coincidentally, I just got an email that opened with: ——————————————— Hey John, 2 years ago I pitched you LIBBA - a dedicated OS for smart glasses. You were sceptical, your main concern was that a custom OS rarely justifies itself: cost, shelf life, and developer burden outweigh the benefits. You were right. ——————————————— I deeply love the ideals of clear, efficient programs that do their job witho...