I remember a similarly aggressive evangelism about self-driving cars several years ago. I suppose it's not so pleasant, when you feel like you've seen a prophetic glimpse of a brilliant future, to deal with skeptics who don't understand your vision and refuse to give your predictions the credit they deserve.

Of course we need a few people to get wildly overexcited about new possibilities, so they will go make all the early mistakes which show the rest of us what the new thing can and cannot actually do; likewise, we need most of us to feel skeptical and stick to what already works, so we don't all run off a cliff together by mistake.