4. Why bitcoin will win
a. decentralized
b. easy access to financial services
a. Bitcoin's decentralization is often a great edge considering that intermediaries are removed and you don't need to trust anyone to handle your money for you, just miners processing your transactions just to get your payment going around the network. While this sounds easy, many people are still overwhelmed by bitcoin's decentralized nature for clinging too much on fiat for the most part of their lives.
b. I don't think so. Central Banks of different nations are trying to regulate bitcoin as hard as they could, with some countries (India and Iran) going to the extremes by prohibiting banks from meddling with bitcoin-related transactions.
Peter Schiff, acknowledge that fiat was deficient but that bitcoin is not the future
1. Fiats backed (initially with gold), now with government trust.
2. Bitcoin has no intrinsic value.
3. Scarcity is arbitrary fixed
4. Bitcoin is not a reliable store of value. lacks certainty in value.
1. Not really government's trust but rather the public's trust to the government. People believe the government too much and so the government can just create money literally out of nowhere and convince people that it's actually worth something. Not even backed by gold in this day and age.
2. As franky1 has pointed out, perhaps you could count the miners' machines and infrastructures as the ones backing bitcoin up, having its intrinsic value tied with it.
3. Is 21-M an 'arbitrary' number if it's stated in the whitepaper? Bitcoin is divisible into smaller units, so I don't think there'd be a problem in there.
4. While this is true, fiat is in a way, an unreliable store of value prone to hyperinflation if a country's economy goes insane (Zimbabwe and Venezuela are fine examples) and is beyond repair.
As a national currency, bitcoin would perform poorly, being a currency with a limited amount and with no chance of being controlled fully by any governments. Due to this, the government can't create new bitcoins out of thin air to satisfy the economic needs of their country. While performing poorly as a national currency, it can still excel as an independent one due to it transcending borders without having the need to trade to your local fiat every time you need to make a purchase.