Mr Ball next treats us to a brisk description of the human eye (remember rods and cones from school biology?), an explanation of why Newton was right and Goethe wrong about the composite character of white light, and an account of the 19th-century regimentation of the continuous colour spectrum by means of colour wheels and other classifying devices.
Wealthfront also found that more diverse portfolios, in the middle of their risk spectrum, had the most to gain from continuous tax-loss harvesting compared to year-end only.