If we want to invest in bitcoin, we need to know everything about bitcoin, there is no way that investing in bitcoin will yield good results without knowing too much about it. Bitcoin is very risky because of its volatility, if you don't have complete knowledge about it, how can you deal with its volatility?
Keep the thinking simple rather than getting too scared of what you have to do. Every investor is a risk taker regardless of whether they can afford to lose or not. Investing isn't a way to keep your budget stable, it's a way to make your money work for you. They don't have to learn everything including the technicals, but investors just need to know how the market works and how they adjust their risk.
After all, it's hard to say that any big investors are willing to invest in assets they don't know about, if any then they are simply betting on luck. Beginners often do this, but they will figure it out after learning.