Justine Haupt is a creative engineer with an interesting take on the “dumb” phone.
She’s a science associate at Brookhaven National Laboratory, and she’s created an open-source rotary “unsmart” phone.
Check out the build description on her personal webpage.
Image linked from https://justine-haupt.com/rotarycellphone/RotaryCell1.JPG.
Kudos to her and the awesome creativity of the human mind!