DID YOU EVEN READ THE ARTICLE THAT YOU POSTED????
No.
You clearly did not.
James Van Allen said nothing about the "validity" of manned spaceflight.
James Van Allen expressed doubts about the continued UTILITY of manned spaceflight.
Furthermore, he was talking about the Space Shuttle and the ISS, neither of which is anywhere near a Van Allen radiation belt.
You are not engaged in honest discussion.
You are not engaged in honest discussion.
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You do know you’re arguing with a mad woman who believes the manned moon trips were all staged, don’t you?
Contrived on a Hollywood back stage.