Financial--debt-asset--growth is exponential. Individual persons don't consume real resources geometrically, but linearly over a lifespan. Population does grow geometrically, so that is the underlying driver for geometric production and resource consumption. Unfortunately, there are a lot of service/non-producing cash-flows diluting the value of popular macro economic benchmarks like GDP and corporate benchmarks like EBITDA.

As CS engineers dominate this place, it should be standard practice to examine, both, the input and output sides of any system during load analysis.