Slack co-founded CMR Surgical and in 2019, they introduced the Versius robot to the market. He is quick to point out the pitfalls of Da Vinci, which he refers to as “the American robot”. It is “massive”, weighing over 600kg, meaning hospitals sometimes need to reinforce the floor of their operating theatres. Unlike the Da Vinci, Versius has independent arms on separate machines which weigh 100kg each. When not using it, “you can just park it in the cupboard”.