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A comment on Ask HN: What tech were you convinced would take the world by storm but didn't?. Parent comment

Re:Ask HN: What tech were you convinced would take the world... by tajen on Friday November 17, 2017 @07:35AM (#15721474)
but you don’t need that for signage, calendar on your door, paper decorations on your bedroom walls, meeting room reservation sheets...
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Re:Ask HN: What tech were you convinced would take the world... by vortico on Friday November 17, 2017 @08:46AM (#15721876)
Are those use cases significant enough to make e-ink "take the world by storm"?
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