In the early 1990's I worked for a communications company and I recall saying that the cell phone was a game changer and that it would be used for more things than the current computer which was the biggest tech item being purchased at the time. Flash forward to 2022 and I am travelling across the world and I noticed that everything one needs to do requires a cell phone app from seeing a menu (QR codes) making reservations, to ordering tickets, ordering an Uber ride, to getting directions, getting on a plane, showing your vaccination status, checking your health vitals, face timing appointments. EVERYTHING! The cell phone became more important and powerful than I ever imagined and the cell phone has still not reached full maturity as a communications device.