It is driven by fear. If you have bolivars and you know it they will be worth half in a month what do you do ? You buy USDs, and you will pay any price for them. So people are desperate just trying to save their savings.

Sure. There are many fundamental economic problems. But it is fear that drives hyperinflation. And this is why it is hard to fix. Because even if you fix the fundamentals the fear will still create hyper-inflation.