Why did the fixed exchange rate system collapse?

The fixed exchange rate system collapsed primarily due to the pressures of inflation and economic imbalances among countries, which made it increasingly difficult to maintain fixed rates. As countries faced differing economic conditions, they struggled to keep their currencies pegged, leading to speculative attacks and a loss of confidence. Additionally, the U.S. dollar's convertibility into gold became unsustainable, culminating in the abandonment of the gold standard in the early 1970s, which ultimately led to the shift towards floating exchange rates.