The finiteness of fossil fuels isn't real in a practical sense.

The globe burnt about 8.8 billion tons of coal in 2024. Which is a huge amount. This is the peak, most estimates are that we will reduce from there.

Australia alone estimates that it has 147 billion tons of economically recoverable coal. That is Australia alone could supply the entire globe at peak usage for over 16 years. And Australia only has about 14% of the globes coal reserves, we can keep burning coal at this pace for at least the next hundred years. And it a hundred years the scope of what we consider to be economically recoverable will have expanded greatly, further increasing our supply.

We will cook ourselves before we run out of fuel.