Even for Falcon 9, which is ~80% reusable, losing the upper stage costs way more than the propellant, so relatively inefficient use of propellant (low T/W) still reduces $/ton to orbit.
💡 Inside Track & Deep Insight
Musk’s tweet pulls back the curtain on what separates SpaceX from every other launch provider: the tyranny of the rocket equation in a reusable world. On Falcon 9, the first stage is recovered and refueled for ~$300K per launch, while the expendable upper stage costs millions to rebuild. That asymmetry means optimizing for lower stage mass (higher T/W) to squeeze more payload from a single-use upper stage is actually less important than minimizing upper stage cost. But Musk hints at the next jump: a fully reusable system like Starship, where propellant truly is the dominant cost, changes the optimization. Now, low T/W (i.e., carrying more inert mass) hurts $/ton because you waste fuel lugging around heavy hardware. This is a direct shot at competitors like Blue Origin and Rocket Lab, who are still stuck on partial reuse. For investors, it reinforces SpaceX’s massive cost advantage — its marginal cost per ton is already the lowest, and Starship could drop it by another 10x. The crypto angle? No direct link, but space-tied tokens (e.g., SpaceChain) could see speculative interest if Starship tests accelerate. Expect Tesla (TSLA) to remain tied to Musk’s narrative, but the real market impact is on space ETFs and 3D printing stocks like Arcam or Relativity Space's rumored SPAC.