The last paragraph is kind of complicated well I guess you meant investing first before learning about bitcoin. Bitcoin basic knowledge is not broad secondly we all need to understand what bitcoin is all about first before investing and it doesn’t take much time “ Less than a week” for a newbie rather all what they need to know is the right investment strategy that suits their income afterwards they start investing. An investor doesn’t need so much knowledge expect they’re into other fields like tech etc and that means investors should only focus on investing knowledge which includes backup funds, dca etc, learning alongside investing is right definitely somethings might sound strange to a newbie that’s why they need a learning place like the forum, lastly there’s no risk free investment.
You obviously missed an important part of the statement about the knowledge requirements for a beginner and that is in the aspect of knowing how to store the bitcoin safely. Choosing the right wallet and knowing how to protect the private keys constitute the basic knowledge that every bitcoin investor needs right from the beginning given how important it is to protect the bitcoin from theft and other forms of losses. Beginner investors have to also learn about self custody of their bitcoin because that is the only way they actually own those bitcoin.