You'd never know it judging by all the Zoom meetings, but those fortunate enough to work from home during the pandemic are still in the minority. According to a new study by McKinsey, most workers globally can't work a full day from home without suffering productivity losses, because most of their tasks need to be done on-site. The McKinsey Global Institute analyzed more than 2,000 job tasks across more than 800 occupations. McKinsey found that while the majority of the workforce ca...