[openasocket]

The transaction fees won't grow forever. Generally speaking, they just need to be high enough that miners can turn a profit. What that amount is, I don't know.

And the fact that there's a limited number of transactions that can be processed in a single block, and competition between miners to validate transactions as quickly as possible, complicates things.

[Sargos]

What keeps the transaction fees from growing forever? If only a certain amount of transactions can be processed when a coin is mined then that means that competition will only grow as bitcoin becomes more widely used. This competition will raise prices yes? Because if you don't have a high bid then you won't get included when the coin is mined. And since coin mining becomes slower and slower over time that means that less windows of opportunity exist for even greater numbers of transactions. It certainly seems like this issue will only get worse unless there's some other factor I don't know about.