It's interesting how Amazon is embedding robots in human-designed warehouses whereas Ocado has humans overseeing a robotic warehouse.
The later is a much easier problem.
replies(6):
The later is a much easier problem.
Also, from the comments:
"My favorite thing about this is how 2 weeks after this video went up, they had an accident where two robots collided and caused a gigantic fire that cost them like 50 million dollars."
One of these things can be fixed, the other will always be a risk as long as humans are involved.