When Tessa MacKay first got in touch to suggest that we meet for a coffee and a chat, I did what everybody does these days and immediately fed her name into Google. What I discovered were some remarkable paintings, but also – and less remarkably – a creation entitled ‘Tessa Mackay’ whose talents, successes, ambitions and interests had been (to some extent) curated in the ‘experience machine’ that is the Worldwide Web.