The Prediction That Changed Everything

Once upon a time, Earth was dying due to the increase in population, food demand, and deforestation. In order to predict what were the environmental changes that could occur in the following decades and how they would affect the biosphere, some scientists from various universities around the globe created a supercomputer by combining thousands of personal computers at different locations into one. Once it was done, this magical machine simulated for them possible futures. And one day, through a magic portal emerged, Future A: a world filled with death and chaos because people kept doing whatever they wanted, but most of everything was destroyed as a result. The sphere they existed on broke and scattered everywhere while everyone fell into an endless void trying to escape certain death, which can be worse than falling forever into nothingness itself. World leaders tried whatever actions could help them get out of this dire situation but nothing worked so they gave up and there was no hope left on Earth... until Future B was revealed, showing another reality where everyone worked for a common good using the powers of their minds, shared ideas and made plans to reach full sustainability. Sadly, Earth had a terrible case of WDS (world destruction syndrome), and many were skeptical regarding the possibilities to create Future B out of their current situation. A few creative, intelligent, and audacious minds advocated for it, but no one listened. The end.