We can only hope to have some vague idea of what the future will hold, but we can always use predictions of what it will be to shape our behavior today.
Most people routinely entertain futures, model scenarios, and attempt to forecast just to get through it all. It's the wavering calculus we use to derive the world, mostly autonomic and instinctual but often focused and procedural, an adaptive tick, enabled by a meaty forebrain and the capacity to anticipate outcomes. Along the steepening curve of civilization, we've now scaled-up to evaluate enormously large complex structures in hopes that we can tune and modify and pre-determine their behaviors. From cellular pathways to ecosystems, economies to weather, we humans seem compelled to grow our dominion over the future ever larger and wider.