it's weird (and this is just a pretest not a contestation) how many time is wasted on trying to state something that is simply wrong, and being wrong do not make you silly, but make the sentence "Brain is a muscle" silly. This is semantic, just say: "Hey, I am not silly. I just wrote something silly" and all the discuss stop there. Hey, we are human, we make errors such as missing "like", and we have an ego, that could be offended, it happen, just that. Saying "is a" followed by "and like a" make a shift from language to metalanguage, the "and" make that shift. English is not my mother tongue, I am sure I am doing error here too. The pretest is because maybe is for the ego that one pretends to stay on deadline, or at least this is my experience, I want to show I am good and I can do it in time, is not always a matter of money. Again, I am human, and I will stop doing unpaid work. I just did a silly thing ;) p.s. I am trying to sound smart because a silly thing to argue about, but I like to sound smart, I do not care if I am not, or maybe that is my fail (to care) and I want to change it.