I don&#x27;t disagree, but let&#x27;s not blur the lines here between people who use computers professionally and people who use computers as an appliance.<p>We could have had an iOS-like security model on Windows for the majority of unassuming retail customers and I don&#x27;t think it would have made a single jot of difference to wider flourishing.<p>(In fact, for various reasons, I would wager that we&#x27;d have a <i>more</i> mature technology sector. Don&#x27;t underestimate the damage caused by malware to consumer trust.)