Starship Technologies is unleashing pizza delivering robots in London.  They travel at a top speed of 4mph, and they’re radius is not that large, but hey, it’s a work in progress.  Looks like pizza bots are here to stay, and will only get better as technology progresses.   One of the most challenging issues is designing robots to respond to curious or confused bystanders. So, for a while the company has had people following its robots, ready to intervene if necessary. But the company now says that its robots have “met over 400,000 people without an accident.”  Hot and ready and roboty pizza. Very nice. Do we have to tip the robot? Er no?