Golden strat and a rule! Diversification of both risks and investments is key to minimizing the troubles to come if one of the coins won't perform as intended.
Indeed,I still don't know why there ar many people or investors that does not act and do diversifying their portfolio
When it is given for how many years now that it is the safer way to invest in crypto market.
It is indeed safe but it should also be considered the composition in managing the portfolio, you should have more bitcoin than altcoin to avoid the risk of storing money in altcoin, so you will get a much greater chance, such as 20% in altcoin and 80% in Bitcoin, it will be very healthy for the development of your investment towards the future, especially if you invest in Altcoin which still has a centralized system, you must be careful even though coin is quite famous and hype in the market.