The market cap of cryptocurrencies are less than 1% of the total fiat that we have, hence it can cover all of this however the essence of bitcoin as a investment form will fail if it happens to be less volatile than it is now and will bring the significance of bitcoin as a currency of the future.....
Don't include shtcoins pls, and even if we only take into account BTC, we can split 1 BTC into smaller amounts or satoshis which can easily accommodate everyone and besides, BTC wasn't supposed to be an investment in the long run anyhow, it turned into one because of its high volatility.
My point here is just, the whole crypto is just a 0.7% of the total money in the world. That's it.
Let's take a step back and stop comparing crypto to fiat which the government unlimitedly produces now shall we? If we were to compare crypto to fiat or anything else for that matter just based on the amount or number of that certain asset, how the hell did gold and other such assets survive.
What I want to emphasize is bitcoin as running in decentralized network is not capable of being a universal currency or at least be the 2nd option for payment because we are not using it as currency. The limited supply is what made it on top and this fits to our intention, to make money through volatile asset.
What pushed me to call it a brand name is because it looks like Windows Operating System of the whole cryptocurrency, the primary of the default when you we say 'cryptocurrency'
You're saying it yourself already tbh. "Because of it's high volatility, it was a great asset to be used for an investment, for trading. But because it's limits are currently approaching, it's' volatility is disappearing and hence, isn't any good for investment anymore." Here's the thing, it's supposed to be a currency, hence the name cryptocurrency. It doesn't matter what "our" as you say, intentions were, BTC was made as a currency, not as an investment.