Completely Agree. Affordable E-Ink large external displays[1] have become like fusion energy.

That said, I wonder why there hasn't been a competing tech e.g. like LED vs LCD; Are the fundamental physics behind E-Ink so perfect for the low-power display that no other alternative is possible (or) is it just the absurd patent which stifles even exploring this direction.

[1]https://needgap.com/problems/43-affordable-e-ink-large-exter... (Disclaimer: It's a problem validation platform, I created).