I think if you are trader and you have understand how the market work right, at some points you don't really need the knowledge again. What you need the most is the experience because it's experience they don't teach, you self learn it and from there you improve in any other things of the market, no one will tell you the market will crash unless you learn it yourself.
While learning the market, learn to also make friends from insiders, most if the time it's the technical analysis of the market that makes you money but getting access to first class information helps you mofe as the market is move by sentiments.
Isn't that also included in knowledge? Indirectly, we may not realize that it is also a hidden knowledge because we already know how the market works. But if we dig deeper, then it is also knowledge.
I think we can't separate knowledge in any case, because knowledge is its main source. If it is without knowledge, then how can we understand how the market works? Well, in this case, once again, it comes from knowledge.