alt Hacker Newspardon a maybe stupid quesiton but a few comments say this and i wonder.
why does it matter that it is not 'visible' for anyone?
pardon a maybe stupid quesiton but a few comments say this and i wonder.
why does it matter that it is not 'visible' for anyone?
"Visible" in this case means "able to influence in any way".
If a problem is not able to influence anything, even in theory, then by definition, it cannot possible influence any testable predictions we have.