Actually, I think your doubt needs some sources. The foundational principle is that there exists at least one of: * a human that has never once made any mistak

Actually, I think your doubt needs some sources. The foundational principle is that there exists at least one of: * a human that has never once made any mistake whatsoever * a system composed of humans who are mistake capable but the system itself actually makes no mistakes. Such a thing seems impossible - if you can point to the existence of such a thing, your doubt is worth entertaining, otherwise it's just contrarianism.