LONDON — Daniel Arsham shot to art stardom with a concept he calls “fictional archaeology,” using materials like sand, selenite crystals and volcanic ash to render objects from the recent past as eroded relics from a lost civilisation. Populating his postmodern Pompeii are icons of pop and consumer culture — from Nintendo’s Game Boy to Pokémon characters to the Ferrari from Ferris Bueller’s Day Off — recast as timeless…