12 years ago we still relayed on notebooks and pens for everything. Then smartphones appear and life changed forever. And also devices like clocks, calculators, cameras, gps, planners, maps, agendas, erasers and liquid paper become redundant.
12 years ago was 2008. Most of us didn't type manually by then. Most of us had word processors, and keyboards with a backspace button.
I still rely on notebooks and pens for everything, yet I never used liquid paper. What am I missing?