This should be a cathartic moment for @psikeykackr - to realize that he is not qualified to judge whether others (let alone experts) are wrong. How can he critique any engineering if he is unable to handle basic grade school units and measurements? (If this is a simple, honest mistake he should consider the strong likelihood that his entire argument is a similarly simple, honest mistake. After all, how would he know if it wasn't?) It should cause him to rethink his raison d'etre as resting on a baseless foundation. It won't. He doesn't care. Trolls are too busy trolling to waste time getting things right. But it does serve as an extant example to readers that - he is not qualified to judge whether others (let alone experts) are wrong . - his whole raison d'etre rests on a baseless foundation. - grade school math escapes him. How does this unqualified troll warrant an audience at all?