We live in a world (system) where the economic system is controlled by a few individuals (powerful families). These individuals can together with the government in this case the national bank in your country print out money out of thin air (back in the days the printed money was = gold funds/holdings, nowadays fiat money is not backed by anything).
When the governments needs money for projects like building a hospital and schools they lend the money they need from the national bank (riksbanken in Sweden) and the state gets in dept. The national bank is magically "printing" new money (everything is printed digitally nowadays) and hence diluting the national currency aka inflation. This sounds like a bad joke, but it’s our reality and you’re accepting it. For how long can this continue?
Bitcoin is still at a ”social experiment” stage but gaining new users at a exponential rate, just like Ivanontech noted! Bitcoin have been working as designed since 2009 and it’s still better than our current 9am to 5pm system.
No inflation (only 21m coins), immutable (the ledger is open for anyone to inspect) tech (if you don’t fork it), open source code, freedom in payment (government controlled currencies can be monitored at all times and if you support a group which is not approved they can stop your contribution). There’s a lot more points that I didn’t bring up but there’s also callenges ahead like scaling the blockchain but there’s people trying to solve these problems as I type.