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- Martin Eberhard said he sent Elon Musk a note after SpaceX's first rocket launched into orbit.
- The Tesla cofounder said he never heard back from Musk and hasn't spoken to him in about 14 years.
- The two men have had a rocky relationship and have been known to argue about Tesla's early history.
The Tesla cofounder Martin Eberhard said he hasn't spoken to Elon Musk in about 14 years.