I wonder how you would categorize "how our investment turns out to be"? Is it simply about making as much profit as possible? If that's the case, I think understanding the market plays a bigger role compared to understanding the tech itself. I mean, we have memes, NFTs, airdrops, and so on. I bet you a lot of people who jump on these projects and made a ton of money don't give a damn about the project itself. I remember a small project that I followed in the past that had some whales who pumped the token to $100, made some posts on social media for a while, and then deleted their accounts after they made a decent profit.
If we're talking about long-term investment, I guess you also have to believe that the assets you bought will face possible issues with no problem. Knowledge of the asset plays a bigger part there. I'm not sure if that's the only factor considering some people don't want to buy when the bear market hit even if they say Bitcoin will be back again.