The practical utility of crypto is such a joke when compared to the intended use cases that all of the speculators fawn over. The idea that crypto is a "store of value" seems like meager coping with the fact that transaction rates in a distributed system necessarily must suck compared to what Visa, et. al. are doing with IBM mainframes and racks of x86 hardware contained in the same datacenter (i.e. 1~2ms latency domain vs seconds to minutes).
For reference, Visa does thousands to tens-of-thousands of transactions per second. The cost to run one of these transactions is negligible because it can be handled so quickly. Contrast with BTC, which struggles to hit 10 transactions per second on a good day. I used to work in a facility that monitored debit transactions. Our SLAs were ridiculous. Certain customers had requirements that if a single transaction took more than 100 ms, we were to open a ticket and contact their help desk immediately. This is the type of rigor it takes to maintain a financial payment network that consumers will have confidence in using.
This is not something that can be solved with current crypto approaches. There are information theory constraints regarding how long it would take to reach consensus across a distributed system and in such a way that transactions are serializable.
For reference, Visa does thousands to tens-of-thousands of transactions per second. The cost to run one of these transactions is negligible because it can be handled so quickly. Contrast with BTC, which struggles to hit 10 transactions per second on a good day. I used to work in a facility that monitored debit transactions. Our SLAs were ridiculous. Certain customers had requirements that if a single transaction took more than 100 ms, we were to open a ticket and contact their help desk immediately. This is the type of rigor it takes to maintain a financial payment network that consumers will have confidence in using.
This is not something that can be solved with current crypto approaches. There are information theory constraints regarding how long it would take to reach consensus across a distributed system and in such a way that transactions are serializable.