Cryptocurrency market is not as stable as you think mate and it will never be in a state of being stable because of it's volatility. For me, I call it a dead coin when it is not affected by volatility and it is not good for traders and investors too. That is why in my humble opinion cryptocurrency investment is better than a stable fiat money in terms of investments aside from them being a decentralized and centralized assets. Bitcoin for me is the most volatile crypto I have ever observed so far aside from Altcoins being volatile due to it's dependency to the king of crypto. It also shows that Altcoins are hard to recover during a correction of prices of Bitcoin and they sometimes bleed to death