0.6 is rewarded to miners for each block.

If you look at the ratio between ratio:total supply, i. E., 0.6 reward to total supply, the ratio shrinks.

So compare the result of these examples:

0.6/20,000,000

Vs.

0.6/25,000,000

Vs.

0.6/30,000,000

Inflation shrinks but Max supply is still uncapped to incentivize mining