> eInk hasn't advanced much since its advent Yes, it has. Even purely from the consumer facing side: the latest panels are far better in grayscale depth, sharp

> eInk hasn't advanced much since its advent Yes, it has. Even purely from the consumer facing side: the latest panels are far better in grayscale depth, sharpness and refresh rate (and their controller still kind of suck). Not to mention colour e-ink panels in consumer products seeing rapid improvements gen over gen. > and no sign it will, as it's controlled by one company. That's less true today, and there are multiple implementations of this idea that are being commercialised. Though, sadly, e-ink the company bought one of them...