Undoubtedly, Bitcoin investment can be risky but not as risky as most people may have it, it is always advisable to invest the amount of money that is more like a Left over or disposable income after taken care of our living expenses which is very important and essential, even though we can not completely rely on history which of course has given us so much guides, Bitcoin has proven to be a good coin with a solid foundation which is also meant to reduce the feeling of risk that should attached to it. However, one may not necessarily need to have much of the knowledge before getting involved in Bitcoin since you can learn more while already in the market, what is mostly important is to have the basic knowledge and learn more on your way up.
Every investment certainly has risks in it and to be able to avoid risks, good knowledge is needed about the investment that we will run, because for those who think Bitcoin has risks and they have never studied it, of course they will not dare to try it and invest funds that we can afford if we lose the funds, of course it will be very important because if we invest all the funds we have in an investment and we fail in the investment, of course we will not be able to survive the situation and I also agree with you, we cannot rely on past history that may not be repeated in the future. Having basic knowledge before deciding to invest is of course very important so that when we invest the funds we have, we can properly maintain the wallet key so that we can access the funds we have invested again and the rest we can learn while running the investment.