A fully feared tricycle recumbent will get you killed in a city with poor bike-ability. I have friends that have been in the hospital for weeks because of bike

A fully feared tricycle recumbent will get you killed in a city with poor bike-ability. I have friends that have been in the hospital for weeks because of bike accidents in SF and NYC, which are arguably the exact kinds of places where you'd want bikes to replace cars. But instead, we have "Vision Zero" projects that still have staggeringly far to go. I don't disagree with you: it would be great if we could replace more cars with bikes, but the reality is that there's almost nothing serious we can do in the US to undo the omnipresence of massive vehicles in most cities.