It seems to me that BTC and Ethereum thank their growth prospects to their established names, rather than the tech behind it.
Seriously?
Please larn more about Bitcoin and Ethereum, and how they are so valuable compared to other cryptocurrencies.
Does surviving or not depend on the amount of demand?
Or does it depend on the quality of the tech behind the project? Those 2 don't necessarily go hand in hand.
It depends on several points, not only on the amount of demand but also on the utility, trust, people behind, strong team, promotions, fundamentals, and also other values. It is not easy to build the trust and reputation to make certain altcoins become very valuable. There may be projects that seem too good to be true, but in fact, they cannot realize the utility of the projects because they are once more, too good to be true.
Many projects are failed to realize their use case and also road map due to the hard competition in the crypto industry, moroeverthe projects that are only following the hype, like the meme coins, Defi project types, games, and many others. As long as they are only following, the perentage to grow up and survuve during this beairhs era is very small.