Tu Quoque The Latin phrase tu quoque translates to “you too.” This is an attempt to justify wrong action because someone else does the same thing: “My evidence may be bad, but so is yours.” This fallacy is frequently committed by proponents of various alternative medicine modalities, who argue that even though their therapies may lack evidence of effectiveness, more mainstream modalities also lack such evidence. That argument, of course, doesn’t justify a treatment that lacks evidence.
