Whether because they want to or because they need to, more Americans are working past 65 and even 75 years old, which means we now have the most age-diverse workforce we’ve ever had. There are four, sometimes even five distinct generations working side by side. That dynamic can foster a lot of intergenerational miscommunication, starting with punctuation and emoji. Plus: Boeing’s latest woes and the difference between the minimum wage and a “living wage.”