Unlike lying, an imagined reality is something that everyone believes in, and as long as this communal belief persists, the imagined reality exerts f… - Yuval Noah Harari

Fiction isn't bad. It is vital. Without commonly accepted stories about things like money, states or corporations, no complex human society can function. We can't play football unless everyone believes in the same made-up rules, and we can't enjoy the benefits of markets and courts without similar make-believe stories. But stories are just tools. They shouldn't become our goals or our yardsticks. When we forget that they are mere fiction, we lose touch with reality. Then we begin entire wars `to make a lot of money for the cooperation' or 'to protect the national interest'. Corporations, money and nations exist only in our imagination. We invented them to serve us; why do we find ourselves sacrificing our life in their service.

Scientists, for their part, need to be far more engaged with current public debates. They “should not be afraid of making their voice heard when the debate wanders into their field of expertise, be it medicine or history. Silence isn’t neuatrality; it is supporting the status quo. Of course, it is extremely important to go on doing academic research and to publish the results in scientific journals that only a few experts read. But it is equally important to communicate the latest scientific theories to the general public through popular-science books, and even through the skilful use of art and fiction.

There is some evidence that the size of the average Sapiens brain has actually decreased since the age of foraging.5 Survival in that era required superb mental abilities from everyone. When agriculture and industry came along people could increasingly rely on the skills of others for survival, and new ‘niches for imbeciles’ were opened up. You could survive and pass your unremarkable genes to the next generation by working as a water carrier or an assembly-line worker.