I would not sign that claim as a general truth. It's true under some assumptions, but then, well, just disable -Werror in 5 to 10 years? It's not like THAT is a

I would not sign that claim as a general truth. It's true under some assumptions, but then, well, just disable -Werror in 5 to 10 years? It's not like THAT is a breaking change. OTOH 5 to 10 years is a good way to accumulate plenty of warnings (assuming a lack of development discipline), which at some point makes it easy to miss that one critical warning that should really be fixed. Maybe I should mention the worst case for an error in the code I write is "people die" (static analysis of safety critical stuff), so that's a good motivation to have no warnings ;-)