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'Energy cost' of making a book in the long term is probably smaller than the ongoing maintenance of electronics.
Kill tree, pulp it, make paper, print book, send to consumer = lasts several hundred years in the right conditions.
(Little laser printers on cheapo, $2 reams of A4 don't last all that long)
E-reader, drag minerals out of earth, send them to a few third world countries process them, send them to some other countries to engineer the device and its batteries... then send it across the world to consumer.
Charge device off mains power (a good old coal/petrochemical/nuke burning source!)
Lasts 8 hours reading time, battery lasts 2-4 years
Process more minerals, make another battery
Device is superseded in 5 years, buy new one
Process more minerals, make new device and battery
Re-image non-standardised data after software is superseded in 10 years.
Yeah, this is a permanent solution to our data storage requirements... not
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