Billionaire investor Ray Dalio has identified Bitcoin's codebase as a potential vulnerability that could hinder its long-term adoption as a currency. Speaking on the Master Investor Podcast, Dalio highlighted concerns about Bitcoin's transparency and the possibility of government interference, which may prevent central banks from adopting it as a reserve currency. Despite these issues, Dalio maintains a small investment in both gold and Bitcoin, recognizing their roles as stores of wealth and mediums of exchange.