Ask HN: What tech were you convinced would take the world by storm but didn't?

Re:Ask HN: What tech were you convinced would take the world... by j_s on Friday November 17, 2017 @10:42AM (#15722835)

Not sure how specific you're trying to be - here's a specific example of 4.2" at $35. I actually would be interested to see a graph of cost-per-square-inch to see where the arms and legs actually do come into play.