Most people focus on Starship’s height and thrust.The number that actually matters is cost per kilogram to orbit.Falcon 9 already cut it from the Shuttle era’s ~$54,500/kg down to around $1,500/kg. Starship is targeting under $100/kg.That’s a 500x reduction in roughly 25 years.That single metric is what makes Mars, lunar bases, and large-scale orbital industry possible.Everything else is a consequence of driving launch costs down.Reusable rockets aren’t just cool engineering — they’re the fundamental econom ...