Oil is to Modern Civilization, As blood is to the Human Body.
Both fluids serve as transports of energy to vital organs of the system.
Both fluids help to supply vital nutrients for sustaining "growth" and "repair".
Without sufficient flows, The system (Body or Civilization) "Collapses".
Does it makes sense to argue about the exact time and date of expected Collapse while the system is still alive but suffering from a chronic and increasing clogging of its pipelines?
Don't argue.
Rush in for Bypass Surgery.
Bypass use of Fossils. Switch to Renewable Energy Sources.