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Not surprising that Goodman would promote an e-ink device, being a Qualcomm employee. However, the "power crisis" has an easy solution that most people overlook: Multiple batteries. A student can charge multiple sets of batteries overnight and take them along with their device of choice, swapping them out as they run down, to get through the day. And hopefully battery life will extend over time so that students need carry a minimum of batteries, or even one set, to get through a day.
And there may be easy-to-use spot rechargers available down the line, such as more efficient solar cells, hand-crank generators, etc.
I caught the pro-e-ink line about "reflecting light, not emitting light" being best, and I'll simply point out that many people have no problem with backlit LCD screens.
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