It's kind of weird when an investor thinks he can completely know everything about bitcoin which to me is impossible,it is even worse if he starts waiting until he knows everything about bitcoin before he can start investing. Somehow it is creepy for a person to venture into Bitcoin without understanding how it works because by so doing he may start investing wrongly with the mindset that he is doing the right thing when he's not. My points is, trying to have too much knowledge about bitcoin isn't necessary rather what is important is understanding how Bitcoin works and how to invest rightly.
That is, general knowledge about Bitcoin is definitely required. If you have general knowledge about Bitcoin, I think it will never be a problem to start investing, but if someone delays investing to gain deeper knowledge, then he is definitely making a mistake. It is very important to know the basic concepts clearly, because without this, you will not be able to implement the investment properly. You have to master the necessary concepts and start investing, but you cannot waste time waiting to gain additional knowledge.