I'm gonna give you ELI5: It has voting futures for new projects. Investors put Ether to buy DAO and get voting right. If the project is accepted by voters (DAO holders), Ethers in the DAO will be used to fund that project.
And since the project will actually require fiat to operate those ETH will be sold thereby lowering ETH price and value of DAO. Unless a DAO2 is mass marketed to continue support of current price.
Thx.
This was short and to the point. A very good explanation. So. DAO for speculative trading for the most part. At least for most of us.