DeFi has the potential to do even better and not allow past failures to creep into the present. It is possible to prove information with an order book, for example, without revealing transactional data, thanks to cryptographic protocols that combine transactional privacy into public Blockchains. This mathematical magic trick protects transactions against the above behavior and allows auditability. However, it does not compromise the privacy or confidentiality of any individual or institution accounts. This method will make DeFi more accessible, and create a liquid and equitable market.