I agree. I'd add that security is always relative to not just an existing level of security but to a threat model. There are threat models relative to which F

I agree. I'd add that security is always relative to not just an existing level of security but to a threat model. There are threat models relative to which Fil-C doesn't make things more secure. (I can't think of one under which Fil-C makes things less secure, though.) A similar criticism applies to "new". Newcastle is named after a castle built 945 years ago. Neuchâtel is named after a castle built 1014 years ago. Xavier (from Basque "etxeberri", "new house") is named after a castle built in the 10th century. Windows NT "new technology", etc.