GeniusThinking
@GeniusGTX · May 12, 2026
Elon Musk says one heat shield problem could kill Starship's reusability for years.
Starship is the most complicated machine humans have ever built.
The hardest part isn't the engines.
It isn't the steel.
It isn't even the explosion margin on liftoff.
Musk named the one
Elon Musk
@elonmusk
High-cycle, reliable engine reflight without replacement, refurbishment or laborious inspection is about the same degree of difficulty as a rapidly reusable heat shield.
And then there are thousands of smaller challenges throughout the primary structure.
This is a crazy hard problem.
05:28 PM · May 12, 2026 · 203.4K views
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