[vlokshin]

Coin is taking something that's outdated -- and unnecessarily physical, and offering a layer of digital on it to create many cards into one.

Yes, this is "doable" with existing technology, but not for the common man.

Security is going to be an issue, sure. If Kanishk can get the security tech concerns AND human worries calmed down - he's on to something that can fundamentally change how we use credit cards.

Until we realize there's really no need for a device this physical... or something beyond what we're currently carrying. But this'll require losing the magnetic strip need, and that'll take time.