I wish I had a source, but I seem to remember an engineer for google's self-driving cars or a precursor of them saying that in those cases, the only solution th

I wish I had a source, but I seem to remember an engineer for google's self-driving cars or a precursor of them saying that in those cases, the only solution they could come up was to switch off the car's decision making and let nature take its course. In the Trolley Problem, this is akin to letting the train mow down the three people so the decision maker doesn't have to take the accountability for choosing to kill the one other person. Which is a pretty common answer. (Most people wouldn't push a person off a bridge to block the trolley, either.)