thanks for the AMA, I'm enjoying the thread.
Would it be possible to embed some sort of an RFID chip in a polymerbit ? And might there be a way to load them requiring the presence of the RFID chip to redeem ? That could make a polymerbit as secure as a hardware wallet, and remove the trust issue of purchasing a form of paper wallet. And it could be used in traditional 2FA too !
BTC 
We have experimented with both already.

Adam engineered a way to block the chip until the hologram is peeled over.
The reason why we stopped working with NFC is the intense production process. About 40% longer than printing keys.

Dallas, TX. Woman holding of our VIA sponsored notes. A run of 100 NFC.