the fundamental reason i'm so bullish oh Bitcoin is something I don't hear very often (although it was made extremely clear by @NickSzabo4 loooong ago):

social scalability is hard. you need decades of track record to reach a point where things actually get interesting.

not only that, but you also need the rules to not be changing all the time. and the rules need to be easy to understand. and you need the system to survive decades of attacks.

you simply can't achieve collective belief in short time, and currencies ARE collective belief.

collective at a scale much much larger than it is today. we're still at a point where every year that passes, there's incrementally more trust in the system

price stability comes *after* full saturation in terms of belief, when resources & futures & intl. trade are in BTC.

the whole "well, a new technology might come along that is much more efficient" argument totally misses this point. yes, it will come undoubtedly, but it's going to take many years before it's actually proven, because with decentralized systems time is the only test we have.

in fact, it's easy to argue to that ETH/BCH/BSV etc are superior technologies. hell, even Litecoin or Dogecoin probably have better optimized configurations (regarding block size, block time, all that jazz)

but none of them have the social scalability of Bitcoin.

so, if you're bullish on some form of "digital gold" vs. fiat currencies, and you're not bullish on Bitcoin, you are hoping for something that won't come anytime soon. because by definition it will take decades to prove itself. which should buy you time to trade accordingly