Klein in Doppelgänger is determined to sound upbeat and present a call to action, whilst acknowledging, for example, that humanity has spent at least two decades squandering its last chances on the climate. She even notes Greta Thunberg’s changed tone.

And then there is everything that has happened since this book was written that has just made everything, everywhere, much worse, in every way.

Personally I don’t feel hopeful today. Maybe tomorrow.