How to use #DAI for leveraged investment?
For example, you need a loan, and you own ETH, and you believe that ETH will appreciate in value, then you can use ETH as collateral to generate Dai, use Dai to buy more ETH on the trading platform, and use ETH to generate more CDP (Collateralized Debt Position, which is Dai's mortgage).
Margin trading can be completely conducted on the blockchain without any third party or centralized organization.