During the fall of the market not all the coins will be able to survive. The most important is to check what product the coin offer and how useful it is. The ecosystem of the project must offer something useful like this
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Because of many scams cryptocurrency investments are very risky. It is necessary to have experience to evaluate the future potential of the project because not all the projects will be able to survive during the fall of the market.
It is very important to check all the information in cryptocurrency industry and all information about projects before investing.
Also not all the projects are able to realize all planed idea. That is why it is necessary to check the development of the project.
While true this is a process that wastes too much time, it takes too long to find a project which has any chance of actually surviving the bear market, it is because of this that many people simple do not even consider on investing in altcoins anymore, after all if you had to go through hundreds of altcoins just to have a chance of investing in a good one you might as well just invest in bitcoin and save yourself all the time you will have to waste investigating those coins.
Of course it takes a lot of time and it is not certain that it will be profitable and that is indeed the risk,
if you want to save time I think the top coins like Bitcoin,Ethereum and BNB are good choices and no doubt about it,
for long-term investment it is much safer and minimizes risk too