. >> roger hoffman. software developer for 30 years. it has been my privilege to work with medical researchers in the battle against aids. will delivery robots interfere with first responders? will they cross picket lines? how will they cope with parades, protests? robots will be hacked. everybody in this room has had their information hacked. equifax, yahoo, twitter, gmail, hbo, cnn, disney, all hacked. consider ro botd hacking could cause fizz -- robot hacking can cause physical harm. if robots can learn, will they learn to play nicely? microsoft developed a chat bot named shea. a company with thousands of computer scientists. shea was designed to chat with 18 to 24-year-olds. within 24 hours of release it was a nazi. here's a question for you. so, what did you expect the robot to learn at the folsom street fair? consider robots' impact on tourism and sales tax revenue. why do people visit san francisco? why do they shop at union square? for the same reason they go to a sporting event they can see on tv. they want to be there, feel th

will soon be back on court as roger federer he's hoping to build on his remarkable run last season this west superstar has landed in perth where he'll play in the hoffman cup team event before defending his australian open title in january and he looked relaxed as he got up close and personal with fans and some local wildlife on rottnest island this animal's apparently caught a quicker twenty seventeen saw federal win his first grand slam title in five years in melbourne and then another at wimbledon he also climbed back to number two in the world all of this came after he took six months off at the end of twenty sixteen because of a knee injury. i think anything i would. like that mass of voters got a big surprise because i didn't expect this of everything about thirty six thirty seven as good as i am today it's really about staying healthy and enjoying myself and be very precise of how i practice what terms i play it's just hard to imagine that out as good as i did last year some reason. to see this it's been like to go you know meanwhile other players including wild number five dominic tim have started that new campaign is already a team with an act