Since I got more knowledge about Bitcoin and Crypto and all that Blockchain stuff I am thinking about it's future. I'm sure, that those crypto/Blockchain Coins will be part of the Future and that maybe they will replace Fiat. But at some points I'm thinking that the Coins which will lead the future won't be the Bitcoin. The Bitcoin is the native Coin, and the most important at the moment. But in some Points I don't see the Future in Bitcoin.
1. During the Hype the transactions costs where at 10$, who wants to pay 10$ if he want to buy a coffee in the coffee shop around the corner. Furthermore the confirmation of those transactions were very slow. It took too much time for daily usage. Sure, Lightning should solve the problem, and all ppl which are involved in it are saying what a nice technic and that it will be the Future. But the not technic customer has no idea how to use it.
2. In my opinion POW-Systems are also not sustainable for the future. In a world where sustainability and environmental friendliness gets more important, POW is a waste of energy. And, it's not even profitable anymore.
3. Decentralization, the best argument for Bitcoin is the decentralization. But it can also be used against the Bitcoin. Because it isn't as decentralized as it should. 5 Pools would have more than 51% of the total hash rate. It sounds not real, that they would do a 51% attack on BTC, but nobody says that it won't happen in the future.
All those are points against the Bitcoin, but I would like to know what you think about.
1. This is not going to happen anymore. There is segwit and Lightning network now, TX fees are at the lowest and will get even lower in v18.
2. You answered the solution yourself. BECAUSE its not profitable, the last remaining miners will be those using free renewable energy.
3. There is no need to use those pools, and unless one gets all 51%, it doesn't matter. Any attempts to do this gets more and more expensive.
There is no doubt that Bitcoin has adapted to the challenge, thanks to its community of developers, miners and node operators. It has resisted attacks, forks, and drama. 10 years and counting, no blockchain reversals or hacks, it has kept its promise unlike certain altcoins...