I would have appreciated a greater emphasis about the fact that a modern computer is made out of invisible transistors and that this is a fully discrete but wor

I would have appreciated a greater emphasis about the fact that a modern computer is made out of invisible transistors and that this is a fully discrete but working model, like a large cutaway steam engine in a science museum. Here, I'll take a wild stab: "You may have heard that computer processors consist of billions of transistors crunching through 0's and 1's. But what is actually happening inside these processors? A man has recently build a computer out of individual transistors, the components that control electric currents to perform computations. Instead of using one chip with billions of transistors, he has used individual transistors wired together, allowing him to visualize the individual computing structures and the electric currents that flow through them. His completed computer has "only" 40,000 transistors, which is just enough to play a game of Tetris, but he hopes that the relative simplicity of this computer, as compared to a modern smartphone, can help educate the public on how computers actually work."