The spiky, alien succulent – metaphor klaxon! – was the gift of an Australian ex he loved but lost through his chronic unadventurousness. In a classic case of telling us rather than showing us, Thomas explains several times that he’s happiest interacting with machines: his phone, laptop and the Amazon Echo that controls his lights, living-room soundscape and blinds. First humans, then technology, and eventually even his houseplant desert him.