We don't have automated cars yet. We don't have (e.g.) fusion power yet. Why should the possibility of improvements in the future stop us doing things that bene

We don't have automated cars yet. We don't have (e.g.) fusion power yet. Why should the possibility of improvements in the future stop us doing things that benefit us overall now? And ... where does "taking civilization back 50 years" come into this? Isn't that a ridiculously overblown way to describe what's actually a proposal to convert a 4-lane road to a 3-lane road plus bike lane and actually enforce the existing speed limit?