What is the ultimate goal that defines the long-term success metric for Elon Musk's vision?

Answer

The establishment of a future where humanity is not confined to a single planet

The ultimate measure of success, according to Musk's view, extends beyond operational metrics like successful launches; it rests on realizing the vision of ensuring humanity's long-term survival by becoming a multiplanetary species.

What is the ultimate goal that defines the long-term success metric for Elon Musk's vision?
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