BONUS INDICATOR: The Calculator That Time Forgot

Published: Dec. 24, 2018, 6:01 p.m.

Most products in this world are vulnerable to creative destruction: as new products are developed, they make old ones obsolete. But there are some exceptions — products that persist, resisting change while economic evolution continues without them. For instance: the graphing calculator. (This episode is from our other podcast, The Indicator from Planet Money. Subscribe to it wherever you get your podcasts.)