At times like early covid there wasn’t much facts and evidence available. Back then masks didn’t stop the spread of the virus but vaccines were supposed to. Who decides what the facts are in times like that?
You rely on what you know and check if the assumptions are still correct when you have more information at hand. That’s what government agencies are supposed to be for.
Evidence and records mostly ?
At times like early covid there wasn’t much facts and evidence available. Back then masks didn’t stop the spread of the virus but vaccines were supposed to. Who decides what the facts are in times like that?
You rely on what you know and check if the assumptions are still correct when you have more information at hand. That’s what government agencies are supposed to be for.