posts

• why is it so expensive to build tunnels?05 Aug 2026 · 211 words

  Tunnels aren't expensive because they're hard to dig. They're expensive because of labor, risk, and the decisions wrapped around building them.

• what a falcon 9 actually costs04 Aug 2026 · 148 words

  The $70 million sticker price is not the whole story. Reusability changes the math on space entirely.