Back a few years ago when I was bored, I briefly made this satirical blog of "Business Plans from Hell - Ideas that should never see the light of day." One of

Back a few years ago when I was bored, I briefly made this satirical blog of "Business Plans from Hell - Ideas that should never see the light of day." One of the ideas on it was "Proximity-fired collision-avoidance missiles." Basically, with existing technology, we have collision-detection mechanisms on today's cars. What if, instead of flashing an indicator on the dashboard, we just fired an explosive device to take out the threat before it could hit us? Mass is the greatest, most significant safety feature you can get in an automobile, so if you want to be safe, you should divide the mass of other cars on the road into tiny particles so you can drive right through them. The tagline would be "Turning the arms race in vehicle weights into a literal arms race." This has significant game-theoretic benefits for the commons as well. It would remove the incentive toward larger vehicles that tear up the road, emit greenhouse gasses, and use up oil stocks. It would also incentivize people to be really, really careful when driving, if you got blown up every time it looked like you were about to collide with another vehicle. It'd defuse (or give people an incentive to defuse) road-rage situations, since if they escalate, you might end up vaporized. It would take the assholes off the road, and remove them from the gene pool besides.