You must not lay all the eggs in one basket, and then the basket will fall and everything will crash .... You need the main portfolio of investments to keep in the top 10 coins))
agree with you! It is necessary to diversify your investments and keep coins on cold wallets. Otherwise, you can lose investment
in any case, you need to have a portfolio of at least 10 different coins. Thus, it was and minimizes all its risks. In addition, judging by the current state of the crypto-currency market, it is better to leave the coins for long-term storage, since any sales will bring you only losses.
It is necessary to divide the investment to reduce the risk, but I think that it is not advisable to invest in 10 coins at a time because it will distract investors. Make a distribution of capital from 3-4 coins and a reserve period when the market volatility will be better for investors.