What blows my mind is the (muscle) memory involved in this. I’m using touchscreen based phones for ~10-15 years and my last phones had a QWERTY keyboard (Hardware buttons!).
can still write texts like I never stopped using these phones. Using T9 I may be even faster than on my smartphone today. I really miss those tactile buttons…
We have some Cisco 8xxx wireless phones at work. Setting them up from factory is great, cause you gotta input the ssid and whatnot using the keypad. Muscle memory is right lol