Software researcher Diomidis Spinellis predicts that improving AI performance, falling costs, and continuous operation could replace much cognitive labor, making human thought more a leisure activity than a livelihood. Comparing this with hunting and horse riding becoming optional rather than essential work, he suggests adapting to technological change while preparing sources of purpose beyond employment. This is an essay, not research validating a specific scale or timing of job losses. Follow-up explanations found in related searches were not incorporated because their full text could not be checked. The forecast should not be treated as a settled future.