This is an awesome concept video. Autonomous sailing, which sounds like a natural next step after self-driving,autopilot etc would be easier, but probably more

This is an awesome concept video. Autonomous sailing, which sounds like a natural next step after self-driving,autopilot etc would be easier, but probably more points of failure and less chance of repair. I definitely don't know the complexities of shipping vessel navigation/maintenance but it seems like a somewhat quick way to try this out could be try this with motors/sensors and have repair crews ready in ports (on standby) and just airlift them to ship, in case of failure.