Why are fossil fuels still widely used?

Answer: Huge existing infrastructure

Huge existing infrastructure ✓ — Correct! Trillions invested in power plants, refineries, pipelines, gas stations, and vehicles. This creates economic inertia—infrastructure lasts decades, investors want returns. Transition requires massive investment despite renewables becoming cheaper.

Renewable energy doesn't work well — Wrong. Renewables (solar, wind) work well and are rapidly growing. Fossil fuels dominate because of existing infrastructure, energy density, and economic momentum.

Fossil fuels are cleaner now — Wrong. Fossil fuels remain major carbon emitters. They're still used because of massive existing infrastructure and the difficulty of rapidly transitioning global energy systems.