We’re already past primary energy use peak per capita, and we’re distinctly past net energy use. At the same time, extraction of increasingly dilute mineral resources necessary for technology requires progressively more and more energy.

So I would expect we start losing fossil inputs quickly, since increasingly unable to extract them, while the renewable infrastructure will not have grown sufficiently, and then starting to decline, since we cannot sustain them with renewable energy alone.

At the same time we’re going to lose a lot of population (excess deaths of several billions this century), so at least whatever resources are left will last longer than at the current use rate.