Malcolm Gladwell wrote an excellent piece in the New Yorker 15 years ago on this topic. Worth a read. https://www.newyorker.com/magazine/2004/09/06/the-ketchup

Malcolm Gladwell wrote an excellent piece in the New Yorker 15 years ago on this topic. Worth a read. https://www.newyorker.com/magazine/2004/09/06/the-ketchup-conundrum/ https://www.newyorker.com/magazine/2004/09/06/the-ketchup-co...