BLOG Marqueta’s blog “Cards as the Crypto Gaterway”argues how crypto cards can provide consumers with a familiar method of using crypto. Crypto can be uncomfortably complex. Understanding it requires a new vocabulary and hours of learning. Intimidating terms like “cryptographic hash functions,” “block confirmations,” and “consensus algorithms” appear frequently in articles on the subject. There’s no doubt that it can all be overwhelming to comprehend. But cryptocurrency doesn’t have to be daunting.