As we know Bitcoin was made for cash payments in the world. It’s system is designed and updated to perform over hundred years. Thus, one day with dollar inflation (if it still exists) and bitcoin desinflation, 1 satoshi or 0,00000001 BTC would has 1 dollar price or more. So, how to buy a item that cost less than the 1 satoshi price, considering that it is the smallest division (the BTC atom) of the bitcoin?
For 1 Satoshi to cost $1 simply means that 1 Bitcoin should be $100,000,000, which I'm sure will take a whole lot of time for this to be actualized, considering the current price of Bitcoin at $23,300 and it's fluctuating market nature affecting price to go up and down. But in such case, there will always be a way for Satoshi to be divided into small fraction just as it being the smallest divisible unit of Bitcoin for payment of goods and services less than a dollar using the lighting network