Why does cyan ink (also known as 'process blue') look so much

ELI5: Why do printers use cyan instead of blue? : r/explainlikeimfive

Anyone know why there is red and cyan/blue appearing on the side of words and objects? The file does not have these so I'm very confused. : r/Printing

How come E Ink screens aren't in more products? It seems like they have some great properties. Are they hard to obtain, or hard to use? - Quora

Why do printers use 'Cyan' and 'Magenta' instead of Blue and Red? - Quora

Is there a way to make faded ink visible? - Quora

Anyone know why there is red and cyan/blue appearing on the side of words and objects? The file does not have these so I'm very confused. : r/Printing

What Is Color Gamut? Everything You Need to Know About Color Gamut and Printing - Mimaki USA

Spot color vs. process color

Color Theory 101: A Complete Guide to Color Wheels & Color Schemes

Why does cyan looks like a very saturated light blue rather than a different colour? - Quora

How come E Ink screens aren't in more products? It seems like they have some great properties. Are they hard to obtain, or hard to use? - Quora