Lego bricks is an apt analogy. I don't know how many people would actually care to manufacture their own Lego bricks but millions of people enjoy putting Lego t

Lego bricks is an apt analogy. I don't know how many people would actually care to manufacture their own Lego bricks but millions of people enjoy putting Lego together. Sam Zeloof [1] actually went through the exercise of making his own semiconductors from scratch. It's a lot of chemistry and experimentation and quite interesting as an exercise, but not at all practical for building your own computer. Printable transistors would take away the nasty chemistry bits that Sam had to deal with but otherwise wouldn't help much with making practical devices. Computers have a lot of very standard, "Lego brick" or jellybean components. Stuff like muxes/demuxes, shift registers, adders, and the like. These are the components you can buy off the shelf to build your own computer. Building these yourself on giant sheets of paper with a printer might be interesting but you'd get a far less practical, usable computer out of the deal. [1] https://www.youtube.com/@SamZeloof/videos https://www.youtube.com/@SamZeloof/videos