* Diversification is good.
Maybe these advices need to be explained very well from the adviser's point of view. When we talk about investment diversification, many people mistake it for portfolio diversification. If you have bitcoin or altcoins, and go ahead to buy bonds, real estate or gold, I think it can be called investment diversification. But if you own bitcoin, and buy many altcoins in the name of diversification, you are wrong. Although, I don't know the adviser's point of view
* Save. Get to the point where you have enough to cover multiple years of expenses. Financial safety is freedom.
I consider this a good advice, but then saving in fiat is risky because of inflation.
* Be boring with most of your portfolio.
I don't understand this please. Does this mean you do nothing with your portfolio, just HODL?
* Don't use >2x leverage. Just don't.
2x to profit is 2x to loss...10x to profit is 10x to losses.