Complex sentence: This is counterintuitive because, from a macroscopic point of view, it would imply for instance that if a jet engine were to run in "reverse" in this context, it would take in ambient heat and exhaust fumes to generate kerosene and oxygen.
Split into simpler sentences: This is counterintuitive because, from a macroscopic point of view, it would describe complex processes running in reverse. For example, a jet engine running in reverse, taking in ambient heat and exhaust fumes to generate kerosene and oxygen.