when bitcoin price was below $1 the transaction fees were 0.01-0.001 bitcoin. then it was changed and the fees at some point were fixed at 0.0001 bitcoin and then it was again changed and the fees were 1 satoshi/byte.
with higher price the fee level will also decrease and you can start paying 0.5 satoshi/byte instead of 1 and lower as we go higher in price.
Topic: $1,000,000 would kill bitcoin - page 4. (Read 7926 times)
As far as I know, with 2nd layer technologies, you can pretty much have lower denominations than a satoshi. So there's that. It's going to be very likely that pretty much everyone is going to use 2nd layer technologies for daily transactions anyway(in the future, that is), while using the main-chain for larger settlement transfers.
Not sure we need to worry about this yet.
A bit too early that's for sure. There are smart people working on Bitcoin. Whatever problems arise, potential solutions will come. It won't reach that Top .. ever.. so don't worry:) 
It would put BTC's final MC at $2,100,000,000,000,000 (2.1 Quadrillion Dollars) which is like 25 times more than the total estimated amount of money in the world...
Not sure we need to worry about this yet.
It won't reach that Top .. ever.. so don't worry:)
I think you have the numbers wrong. There are 100,000,000 satoshis in 1 BTC. That means BTC would need to hit $100,000,000 in order for 1 SAT to = $1.
Even $100,000 would kill it. If 1 sat (or even 100 sat) == $1 then the fees would grind the system to a halt. The fees would be so high relative to the amount sent, that it wouldn't be worth it. From an investment perspective 1 sat==1$ is a nice round number. From a users perspective, only being able to buy things divisible by 1$ is crap.
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