If a pixel can be printed with no colors (white), cyan, magenta, yellow, cyan and magenta (blue), magenta and yellow (red), yellow and cyan (green), or all thre

If a pixel can be printed with no colors (white), cyan, magenta, yellow, cyan and magenta (blue), magenta and yellow (red), yellow and cyan (green), or all three inks (black), that's 8 colors, 3 bits per pixel, not just 3 colors. Typically laser and inkjet printers do more or less work like this, but also have a fourth ink, which is black. I am very skeptical of this idea that people will be able to write but unable to produce useful digital computers. Computers are a mathematical discovery, not an electronic invention. Electronics makes them a thousand times faster, but a computer made out of wood, flax threads, and bent copper wire would still be hundreds of times faster than a person at tabulating logarithms, balancing ledgers, calculating ballistic trajectories, casting horoscopes, encrypting messages, forecasting finances, calculating architectural measurements, or calculating compound interest. So I think automatic computation as such is likely to survive if any human intellectual tradition does.