Same deal as https://www.theverge.com/2016/4/8/11391840/us-navy-autonomous-ship-sea-hunter-christened https://www.theverge.com/2016/4/8/11391840/us-navy-autono

Same deal as https://www.theverge.com/2016/4/8/11391840/us-navy-autonomous-ship-sea-hunter-christened https://www.theverge.com/2016/4/8/11391840/us-navy-autonomou... "One consideration in implementing the ship's autonomous functions was making its movements seem human-like. Any maneuvers it makes to avoid collisions have to be detectable by crew on other boats, so changes in direction (which are more easily spotted) are preferable to changes in speed that might be just as effective but are less obvious signals." Obeying rules is nice but you need to account for behaviour of human actors as well.