The picture in Argentina was not rosy before Milei took office, it was a country on the verge of hyperinflationary collapse, with a population declining through emigration, a largely informal economy in decline, and people struggling to keep up with dramatic inflation.
I don’t know of another case where hyperinflation was arrested without introducing a new currency. Milei has apparently done it by simply cutting spending, which naturally comes with some pain as the subsidies and government employment are curtailed, but a sound currency sets the stage for distributed investment, lending, entrepreneurship and growth.
More recent policy changes have focused on opening up the country to exports and imports, which will be key to bringing about prosperity through growth in industry, and bringing prices into line with international norms. https://www.msn.com/en-us/politics/government/javier-milei-d...