Trading is very unpredictable and I think that its risky to do it but on the other hand it stays very profitable for a short term so due to that its also again worth it too. but if we have skills and knowledge than this predictable work give us money, but it is depend on our ability how to earn. Yeah, altcoin trading better is that earn in a short term, than it will be profitable.it is tension also.
Yes trading may become predictable job only when you are an expert with your skill and knowledge about trading. I mean to say you can be an expert in programming or graphics designing but it will never help you to tackle the complexity of trading. You must need some specific knowledge about trading so that you can make trading as a predictable job.
Trading will become predictable when we are gaining experience which is highly non-similar to gambling. But I wonder many people are comparing trading with gambling and leaving off trading by assuming themselves as trading is an unpredictable job.