Bitcoin investment never requires deep knowledge about Bitcoin, but it is definitely necessary to acquire general knowledge about Bitcoin, if you want to hold Bitcoin for the long term, then you definitely need to acquire that amount of knowledge, so that you never panic during times of volatility. Knowledge is definitely necessary about Bitcoin, it is never possible to achieve anything good with zero knowledge, in the same way, Bitcoin investment does not require deep knowledge, but general knowledge is definitely required, so that you do not panic during times of volatility and make wrong decisions, and your holding is saved from loss.
In my own understanding, once you have the basic knowledge about Bitcoin and how to accumulation it either through the dca accumulating strategy or lumps sum strategy then you are good to go, along the line you can start seeking deeper knowledge on it so as to know all it entails to be successful as a Bitcoin investor, you don't have to know it all to start, just start once you have the basic knowledge about it.
The most important things you need before you can start accumulating bitcoin is your discretionary income.After sorting out your discretion ,then you can start accumulating bitcoin using your discretionary income.As per having a basic knowledge, you can be accumulating bitcoin and as the same learning more about it.so the major thing is if you have a discretionary income since it is not advisable for you to invest money for your expenses into bitcoin or money that you will needing within a short interval of time.