Every fiat currency has ended in disaster and hyperinflation. [...]
The US dollar has been very stable for the last 40 years. The Euro has never seen hardly any significant inflation, let alone hyperinflation.
Bitcoin, on the other hand, loses 40% of its value in a few weeks during market swings.
You really need to come back down to earth when you discuss macroeconomics .
Very stable? Hardly - the dollar is the opposite of stable over time.
$1 in 1984 could purchase $3.03 in 2024. That isn't stable. You've lost 2/3s of your purchasing power.
Between 1970 and today, $1 in 1970 could purchase more than $8 today ($8.14).
Look at the price of gold in 1914 to today. One ounce of gold was worth $20. Today it is around $2500. Ditto for any other object that could hold value - houses etc. A Model T was around $260 in the 1920s. Look at a car today.
This is the opposite of stability. Sure, you may not have short term volatility that bitcoin currently has, but if you want to have a stable currency where you can safely store the value created by you during your life for more than a few months or years without it being sucked away by inflation, fiat currency is not it.
Anyone owning bitcoin for any reasonable length of time has not lost money because people realize that government money isn't safe.