Yeah so the point of my OP was to say that it won’t even be a choice of whether to add more decimal places. Once bitcoin is valued high enough, we will need more divisibility to pay for some things. Example: if 1 sat = $1 and the price of gum in dollar terms is $2.50, we need smaller units than satoshis to cover the $0.50 portion. I think this is already possible on lightning though since there’s mSats.