3. If alt coins survive in the next century what is the reason it would.
4. Should alt coins be traded rather than HODL?
simple reason, because they have a market interest. and their project is used in the long term. indeed there is no guarantee that the altcoin project will last a very long time. so I won't hold altcoins, or trade them for short term gains.
when a new project produces its altcoin, there will be an increase in the number of altcoins in the future. and also some of them will disappear. when they no longer update the project and lose the market.
When it comes to altcoins, or alternative cryptocurrencies, it's true that the crypto market is highly competitive and constantly evolving. Many new projects and altcoins are introduced regularly, and not all of them will succeed in the long term. It's important to conduct thorough research and due diligence before investing in any altcoin to assess its potential and evaluate the project's fundamentals, team, technology, and market demand.