...Do not stake your all! ...
There is a rule that all investors must strictly follow: "Don’t put all your eggs in one basket". Of course, if fortune favors you, you can make a big profit, but you should not play roulette with her. The risks in any business should be adequate and in case of failure it should not lead to bankruptcy.
Therefore from that failure we can try again to become bankrupt, so it's true don't put all assets in one coin when one coin fails there are still other coins that can generate profits.
Sometimes there are still people putting all assets in one coin with the desire to multiply, Yeah if it's lucky what if not? That's what should be thought about not about profit but how to deal with risk when it occurs.
Diversification is better, because some professional investors do that strategy so that they don't go bankrupt, so I myself do it.
There's always a need of alternative plans, putting all your investment in one project means risking everything, like you mentioned what if you are not lucky and your investment failed, the outcome will ruined you financially and mentally unlike if you have other options and you managed to monitor everything the right way, if you failed from one of your investment there are other that might still going to work and will allow you to bounce back, more on how you assess and analyze its a self explained opinion I guess.