Those forces against bitcoin accuse it of being UNstable. I’ll list an extreme example to show you why it’s the fiat that is unstable.
In China, there’s a city that held the 2010 Asian Games near Hong Kong, called Guangzhou. You can find in official historical data that real estates were sold at around 4000 yuan per square meter in 2014. If you open a website for the Chinese people to buy and sell bitcoin directly with yuan (without the USD as pivot) known as Huobi, you’ll see that 1 bitcoin was for around 2500 yuan. At that point in time, a house was sold at around 4000 yuan per square meter. It can be verified at real estate agents’ official data.
In other words, if a house could be bought with bitcoin, a square meter would be worth about 1.25 bitcoin.
And today in 2018, the same unit of a house is cost 50000 yuan. If you check the bitcoin price vs yuan, it’s roughly 1:40000.
Again, if a house could be bought with bitcoin, it’s, still, worth approximately 1.25 btc.
So, with 1.25 btc in your wallet, you can always buy a square meter of a house, now or 4, 10, 40 years later.
If next time someone says bitcoin is too unstable to be a currency, tell them this story or a similar one that happened in your city.