Connect Bitcoin and Fiat money to have the best of both. Cash as stable liquidity is the perfect hedge against volatile markets and thus the king for payments. Unfortunately, it’s, even with Fiat-paid interest on your cash, nearly impossible to keep up with inflation. Bitcoin, on the other hand, is able to keep up with inflation, but as long as you hold cash, nobody should waste a single Satoshi for payments (see May 22, 2010, pizza bought for 10,000 BTC).

Introduce interest on cash and pay out the key interest rate not in Fiat but in Bitcoin while guaranteeing a 100,000€ statutory deposit insurance. Simply use the best of both worlds. Disclaimer: inspired by “River Finacial”, who has already implemented this idea for US customers.