If you are very confident about the project and willing to hold it long term, then go ahead, invest all. You would be risking everything. Either its going to change your life or you are going to drown in regrets (and financial problems).
I would never recommend that; why should we go for do-or-die kind of risk?
There are a lot of opportunities are available which will be helping us to diversify our portfolio so that we could earn in definite way rather than risking all at one opportunity which may hit or may not.
Both investments and trading are highly unpredictable which is the reason we are going for multiple options to ensure we are having good returns in average at least.
I'm seeing a lot of people are going all into bitcoin and sharing like they are enjoying good profits because of bitcoin's strong rally on every four years. Still, I agree with them because they are planning for long-term like for decade of holding and not just one or two years. It means we can go for investing into only one thing but that should be bitcoin and more importantly should be for very long period of holding like 10 or 15 years.