Brutal truths I think are useful:
- There is nothing guaranteed. Not even the positive Bitcoin long term trend.
- There is no such a thing like pre-programmed scarcity. Scarcity is determined by
supply and demand. If Bitcoin isn't adopted by the people, it will go to zero, even if the 21 million limit stays in place.
- Bitcoin is a social system. The way the community communicates matters. Simply believing that it "can only succeed" is wishful thinking.
- 99% of all altcoins are borderline or outright scams, including some of the top 10. They are created to enrich their founders.
Check the tokenomics (and don't be surprised by the extremely high number of coins the founders reserved for themselves).
- If an altcoin project claims it solved a technological problem - most of the time other altcoins and even Bitcoin can adopt that solution as well.
- NYKNYC. Seriously.