Otherwise i agree and you have good points but not with one of them
3. Market Share - It's also important that the cryptocurrency we buy is in the top market, for example in the top 20 altcoins like that. Like many investors, it is popular and many institutions, companies, and or well-known personalities invested here.
Although in the stock market it is the same, usually those at the top of those good stocks or blue chip companies are good for long-term investing.
Why does it have to be top market? They might as well could have reached their top value or their growth rate could be very slow as they don't have much room to grow compared to small caps.
The fact that something is high doesn't mean it could last several years.2. Remember, the past is past
Also, what does this mean? Because it sounds like you are ignoring past somehow. We can learn from the past. That's the only thing we can learn experience from. Also from the past we usually know what kind of tech we should invest to in long term.