If you ask me, what is the hardest job? Then perhaps my answer will be the investment profession. It is a truly unique and harsh profession compared to other professions. Especially with Bitcoin and a volatile market like cryptocurrency.
Nope I disagree with you about the idea that investment is the hardest job, not as a profession as strategy. It is the easiest job if you have knowledge about it. It just needs nothing but HODL!
Anyway investment is easy when you have a proper awareness of things like knowledge, strategies, and experience as well as funds. So if you don't have it, I think you are right here that investment is the hardest job. Because if you don't have proper knowledge, then investment can be a gamble for you. Investment in Bitcoin is a complete department in which you should have need to learn a full fil knowledge/awareness of market sentiment, if not then volatility can look like betting or gambling.
Investing is not the most difficult job but also not the easiest, if investing was easy, not many people would lose money and you have also seen many people who do not want to invest because it is too risky than you think. The financial market is considered an extremely fierce battlefield, the winners are small and the losers are the majority, so it cannot be said that investing is easy.
When you have knowledge and experience, it only helps you increase your chances of winning, but does not guarantee that if you have those factors, you will definitely win.
In general, making money is never easy whether it's investing or any job, and that's why the rich in the world only have a very difficult rate while the rest of the world still met alive in poverty.