Geoffrey Hinton (left), known to some as the godfather of AI, and Stephen Marche, author and political commentator, tackle the question “Can we control AI?” at this year’s Collision conference in Toronto, Canada, on Wednesday. Photo: Han Wei/Caixin

Maria Sharapova, entrepreneur and former tennis champion, speaks on Wednesday. Photo: Collision

Hong Kong’s booth on Tuesday. Photo: Han Wei/Caixin

An interactive board allows people to use yellow dots to express their opinions on various questions facing technology. Photo: Han Wei/Caixin

Microsoft’s booth on Tuesday. Photo: Han Wei/Caixin

Attendees talk at a booth during the conference on Tuesday. Photo: Han Wei/Caixin

Attendees play table tennis at the IBM booth. Photo: Han Wei/Caixin

Attendees gather to hear a presentation at Dell’s booth. Photo: Collision

An attendee tries out a VR headset at the Neuroptek booth on Tuesday. Photo: Collision

Attendees walk into the conference, which is being held in Toronto’s Enercare Centre, on Tuesday. Photo: Han Wei/Caixin