Sometimes I see people talk about knowing everything about Bitcoin investment before starting which to me those not sound right because when it comes to bitcoin investment you will only know more when you get involved, is when you get involved you will discover what works for you because that person telling you about Bitcoin investment his ways and strategy may not even work for you I think what a newbie should have is just the basic knowledge about Bitcoin and then he or she can start no need trying to know everything.
I think they're talking about having the basic knowledge about bitcoin and not (knowing everything) because there's no way you can be able to know everything when experiment is not being made. Even when we are learning in school their are some certain things we may not understand not until we carry out some practical that's when we can still know more about it, moreover I don't even see bitcoin investment as something that requires enough knowledge so far as you have the basic knowledge. Of course you can start accumulating bitcoin, and in the process of accumulating then you can be able to figure out some things.
And of course knowing everything about bitcoin before investing is also a very nice idea, Rather it will take a lot of time before you can be able to build your knowledge. than when you're learning in practical Way, because if you're learning through practical maybe after you most have gotten the basic knowledge about bitcoin investment of course it will make the process easier for you.
I agree with your first paragraph @ejikeme24, JJG was not actually talking about knowing everything before starting Bitcoin investment because it is very impossible to do that and anyone who wants to... will be seen as an unserious investor to some extent because it is not necessary and secondly that person will missed some opportunities while trying to know everything before starting his or her investment. However, the basic knowledge in Bitcoin is more than enough to start a Bitcoin investment, your illustration or instance is quite okay but you should also know that some people still carry out the experiment in school and won't still have knowledge or understand what they have done do you know why? It may be that they didn't place priority in understanding the experiment while sometimes it can be that they are dull in understanding likewise to Bitcoin investment some people don't place priority in investing and holding for long and that's why some run into problem because of trying to device means or bypass to make everything possible.
But I disagree with your last paragraph it is not a nice idea and can never be a nice idea to know everything before starting Bitcoin investment rather people that need this before starting... are traders and funny enough they can not still know everything no matter how they try.