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Re:Ask HN: What tech were you convinced would take the world... by Heraclite on Friday November 17, 2017 @04:36AM (#15720531)
NFC on the phone.

I thought it would revolutionise lots of things. Turns out it took 10 years longer than I expected and is just a "fun" feature for now.

Re:Ask HN: What tech were you convinced would take the world... by jpatokal on Friday November 17, 2017 @04:43AM (#15720569)
NFC & Android/Apple Pay is actually kinda amazing if you live in a country like Australia where tap to pay is universally supported. It's starting to get traction for transport smart cards as well.