For altcoins, buy low and sell high, and you will make a profit. Although this statement is correct, it does not go for all coins. Some people think that when the market rebounds, their altcoins will rise with it. But the result was leaving the market at a loss.
So choose wisely and follow up the project. See what their developers are doing, or just hiding behind the prevailing saying.
This applies to our whole living time mate not only in altcoin, like in 1 basket of tomatoes there must be ripe or in a basket of eggs surely there will be broken.
but in this part it is more exaggerated because the term is "MOst Altcoins Will Never Survive" that is the right phrase to use in this matter because many of those as shitcoin or at least Fake project at all.
invest at your own risk and diligence and also invest what you can afford to lose.
never trust all the coin you see and never trust every word you hear as advise .