Some good conversations here
My two cents on what makes Bitcoin so special with 3 key elements, in my opinion and in no particular order:
1. Decentralized vs. Centralized
It is actually a difficult concept because centralization can come in different shapes. Facebook Libra/Diem is obviously centralized as you have a “central power” with Facebook. Ethereum is somewhat centralized as well because you have less nodes, a foundation and some key people working on it (e.g. what happens if Vitalik is arrested and the foundation is closed?). Dogecoin can be considered very centralized because the wallet distribution is really really bad (i.e. one wallet apparently holds 28% of all coins…).
Bitcoin full decentralization from the start allows to have no third party at all and a public access to all relevant information you are looking for. You can explore and audit the entire chain, you can set your node easily, you can read the protocol etc. It is not entire perfect as you have somewhat of a centralization of mining, but I trust it will get better in the future.
There is also a philosophical/political aspect to it, and I know it will go above the head of 90%+ of the people, but a lot of original adoption came from libertarian and privacy-minded people.
2. Technology
While I am not a big fan of Ethereum today, I still think it has a bright future considering the amount of developers working on it (or it might become to complex and unmanageable). Blockchains are technologies after all, you want to make sure that it evolves and gets better with time. Litecoin for instance is not a bad technology per se (it is a fork of Bitcoin), but the limited amount of development on it makes me think it has no real future, and same goes for the thousands of other irrelevant projects.
The amount of work behind Bitcoin is just astounding for a decentralized projects, with truly smart people driving projects such as Lightning network, Taproot, Schnoor, etc. These are very technical upgrades that you don’t need to understand, but it definitely shows the health of the environment.
3. Network effect
That’s what Cursino was mentioning with the first mover advantage, and this is massive. I like Nano, but I don’t know anyone that uses it. I prefer to use DAI but usually Tether or USDC are the preferred stablecoins. Cardano is interesting as the first PoS blockchain, but the volume of daily trade is really low. Network effect is really powerful, I would love to use Signal over Whatsapp, but there is just no way to move away from it entirely today.
Bitcoin is by far ahead of everyone when you combine market cap, transaction volume, number of wallet, developers, projects, information etc. and I don’t see how it could change for a very long time as, anyway, adoption keeps increasing.