That's what is really needed in trading; zero knowledge is not possible here, because if you have zero idea here and you make money, that means you just got lucky and your dealings in trading are just a gamble. And it doesn't mean that if you make money, you're a trader right away and then you know yourself that you don't have an understanding of trading. How can you become a trader if you don't have any knowledge about it? right?
Being a trader takes time and learning, so the context in which you look at it is wrong, as it is just like a gamble and just luck; trading is not like that. Because if that's how we think about it, our capital here will be wasted for sure.
One can become an experienced trader without complete knowledge about trading. Becoming an experienced trader requires patience, strength and education about trading. But those who are new come first and trade if they are profitable then it is due to their luck. I had a friend who was just spot trading for a few months he made $900 in about a month trading one coin at a time maybe it was just his luck. I say this because he has no experience in trading but he earned from first trade.