Do you remember back in the 1970’s we were told we were going to run out of oil- we haven’t
And if we want to apply the “finite” theory we can equally apply it to Lithium as well . Oh and were we not supposed to run out of new sources for gold, silver, diamonds, natural gas, methane and so much more?
If we are to just rely upon the theory that the oil we drill is from decay of dinosaurs we would not really be doing earth science justice. Because we have continued decay of all kinds and forms of organic materials over billions of years. Take Peat for example that’s decayed organic matter, it was once used for fuel as well.
Take algae for example, decay of that is where you get oil and other gases from in oceans.