I got hit by a truck a few months ago and a dash cam (well, really, scooter cam) could have shown beyond a doubt whose fault it was. I wish I didn't have to be hit by a truck in order to realize this. If something ever happens you're going to want to have had a recording of it.
> Instead of video, what if our bodies and property emitted points clouds all the time
If instead of practical and widely available technologies we are discussing scifi concepts which have no realistic prospect of materialising then why not wish for a force field impervious to trucks? Or even better, lets skip the whole middleman and wish for point to point teleportation for all cargo eliminating all dangers and externalities of trucks.
because I believe there is a realistic prospect of materializing and it would increase accountability for many actions where its currently impossible even with the burgeoning ubiquity of video
