It wouldn't be fixed in reality, and nobody would really know how much money exists Yes, it would be fixed. Each bitcoin is currently divisible to 100 million

It wouldn't be fixed in reality, and nobody would really know how much money exists Yes, it would be fixed. Each bitcoin is currently divisible to 100 million satoshis and it could be further subdivided if necessary. Regarding not knowing how much exists, at least with Bitcoin, that's not true. Anyone running a full node has a complete copy of every transaction going back to 2009. And the generation of each and every block that contains newly created bitcoin. We would know exactly how much money exists if we were on a Bitcoin standard.