Art in the time of Covid-19 imposes a new tolerance to a life online and given that so much online content is highly commercialised, or else trivia, prurient or sensational, the experience of visiting a virtual gallery, is unexpectedly enriching, through its required slowness and deliberateness. Amar Kanwar’s art has this power to arrest and the images onscreen stay in memory, but more immediately they summon up a line of writing that’s power has only increased in the age of the internet.