In #Bitcoin, there's this thing called the difficulty adjustment.

As more and more hashrate comes onto the network, the difficulty is increased, so it becomes harder to win the block reward. 

The goal is for each block to be mined approximately every 10 minutes, regardless of how much hash rate there is.

In fiat world, the rate of inflation is the difficulty adjustment.

As more and more currency is printed into existence, it becomes harder and harder to preserve your purchasing power.

The goal is for the majority of people to be stuck in an infinite rat race to nowhere, so they don't have time to question the policies of their government.