A thing that has always puzzled me. Think of everything on earth that requires oil to operate day after day, year after year.
How vast must the lakes of oil be? As vast as the oceans?
How did the first people who tapped oil know how much there was to produce automobiles, trains, lorries and planes en masse.
They must have been confident that the supply was there for many years into the future.
I still can't get my head around how much oil there must be.
So many questions in so short a life.