I suspect opinions vary strongly. For example, you can be a very impulsive person and quick on the trigger, so to speak, but if you trade by numbers (I'm not talking whether they would be right or wrong) and can actually force yourself to stick to your trading strategy, can you be considered "an emotionless trading terminator" even if you do in fact have a lot of emotions? What about trading bots then? From my experience, if anyone or anything ever comes close to being a trading terminator, it is them without fail.
If you can keep your emotions out of your trading then you are indeed a terminator. You're welcome to have emotions elsewhere.
As for bots, they can trigger cataclysmic events just by getting swept up in the movements tiggered by the emotions of human traders and run riot before they can be stopped. So they can be emotional in their own odd little way, albeit unintentionally.
Try to find some books from stock market theme. It`s much older than crypto market. There are a lot of experienced traders who can give good advices or trading psychology or risk management.
You are indeed correct. It doesn't matter how old the market is. Humans don't change. Look up anything by Jesse Livermore or the Reminiscences of a Stock Operator by Edwin Lefevre. They're both very old and very relevant.