Can we modify the software/bitcoin blockchain to allow for division and smaller denominations than a Satoshi if we decide to in the future?
I guess it cant be done because satoshi is the smallest unit for bitcoin and I dont think it is needed because it will just create alot of confusion . Even with the current denominations, satoshi , bits , mbtc and ubtc, many people are already confused about it and keep on asking what is that about
it can easily be implemented in bitcoin. if the price is at a stage that even 1 satoshi is worth something and transaction fees are getting too expensive, then it can be divided to smaller parts like 1e-9 1e-10 ...
so that it can be spent too. but i say it depends completely on the price.