Foreword

For Janice… who through her brief time on earth, changed my life… and the trajectory of human existence. This one’s for you. Vincent van Gogh painted Starry Night during his stay at the asylum of Saint-Paul-de-Mausole near Saint-Rémy-de-Provence in 1889. His heavy brushstrokes illuminated the turbulence of light and clouds in the night sky. Far ahead of his time and not a man of science, the theory of fluid turbulence hadn’t yet been discovered: fluid turbulence, that is, the theory of the transfer of energy between ‘eddies’ (an eddy is a circular movement of water, air, or smoke). Maria Popova, as she always does in her literary masterpiece of a website

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