What happens if the smallest unit of bitcoin - a satoshi- becomes worth so much money that it cannot reasonable be exchanged for anything? Say one satoshi is the equivalent of $10,000 USD, then what good is it for actual exchange of goods and services, besides buying real estate or somesuch nonsense? Just a random thought I had, and I am no student of economics or computers, but I was curious as to proposed solutions or if this is just an irrelevant concern.