Right, because men like this are Beta ...
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Never said that.
But now with that said: Not all astronauts is like the guy in the article you are referring to.
Some of them are real nerds these days that live on the ISS space station. So riding rocket doesn't automatically convert you to a thunder alpha. Nor buying a Ducati motorcycle and strapping on it neither makes you alpha either because alpha is a mindset.
You can be as buffed as Arnold Schwarzenegger and still have beta mindset.
Like I said in a past thread re-quoting myself:
Either you have the mindset or you don't.
It is as simple as that.
If you can learn it?
Sure I think you can; but you can never "beat" a person with a natural alpha mindset that does it naturally from his core personality since he was born.