So In a nutshell your problem is decimal point?
How do the US calculate yuan? A yuan is 0.15 Dollar
And a Naira Is around 0.00072 dollar and even in cents it would still be in decimal.
Except movies are lying
I have seen price tag that has decimals on them.
I really can't see the problem you trying to dig up
You making it complicated
400Sats is 400Sats
You choosing to convert it is on you.
Bit or Sat or Nah? What would Satoshi Nakamoto choose if he returned?
Does it matter?
What matter is consensus.
My problem is how to ensure the smoothest transition from fiat to hard money. We have only one chance to do it right before the dollar collapses.
Why would US citizens need to calculate Yuan? We are talking about people within the same jurisdiction going on about their daily business activities. People in the US would appreciate it if they don't have to suddenly deal with 0.0000xx or 100s of Sats to buy coffee or lunch. Same thing for other currencies.
Since the global money supply is at around $100 trillion, it makes sense to have a hard money system with max circulating supply near 100 trillion to reduce friction as people switch to a new unit of account. Think about thousands of businesses switching their entire menus and accounting books from a fiat currency to a newer, harder money. Going from single digits to a bunch of hundreds or a bunch of 0 in front adds a lot of confusion and friction.
Since global population is near 8.53 billion, 85.3 trillion / 8.53 billion = 10k Nah/person. If the target to build wealth becomes easier to remember, people will save more and lower their time preference.
Last but not least, 853 is a prime number formed by a fibonacci sequence. 21 is also part of the fibonacci sequence but it's not a prime number.
Why do we want to have a prime number to represent the system? Prime numbers cannot be divided by 2 or 3 or any other number apart from 1 and itself. Psychologically, it makes people want to save at least 853 Nah. Think of how some bitcoiners would celebrate as they reach 0.07 or 0.14 or 0.21 BTC or 21 million Sats. And the fibonacci sequence simply makes it pleasing to people's eyes.
If you can't see the problem, it might mean that you are exceptionally rational in your dealings with numbers and can calculate numbers in your head much faster than an average person. But most other people are not like you. People like whole numbers and nice numbers that are pleasing to their eyes. It's a blessing from
Satoshi Nakamoto that we have 21 as the number that represents Bitcoin. It would have been a lot harder to communicate the idea of Bitcoin if its max supply is, for example, 91,822,000 Bitcoins.
21 million Bitcoins have been great as a store of value and will likely continue to be so. But since the hard money revolution requires a number to represent world's medium of exchange and unit of account, we are going to have to choose between Sat & Nah. The math is clear that Nah will ensure a smoother transition. And in the Bitcoin world, I hope math still dictates consensus.