What the hell is wrong with the Bretton Woods System?

**Basic premise:** **What we need is a world where you can just buy anything you need with dollars.**<br><br>Basic premise of the Bretton Woods system in 1944: **What we need is a world where you can just buy anything you need with dollars.**<br><br>It didn't work out. Is there something inherently wrong with this system?<br><br>**Edit:** Thank you all for the responses! I think I understand the answers now. Please read the top comment by u/throwaway_austrian for a good summary of them. <br><br>Also, I know this isn't a pure economics post, but I thought maybe some of the more historically inclined people in r/economics might have a thing or two to say.