No problem.

Portfolio theory shows me that to preserve wealth is mainly about managing risk. In coming up with a stable token I would suggest that the collateral or backing be diversified in such a way to spread the risks. So to put it all into one fiat is to back it in a political way and politics can change, fail, or anything could happen, so I would not think that is a good idea.

I think Dai actually has a good approach to it. They are going multi collateral which spreads the risk. I would go a similar route if it were my decision. As for what assets should make that collateral up I would say these should be swapped in and out according to calculations of risk.

Suppose we go with my real estate example? Real estate can charge rent. Rent can produce the equivalent of a dividend or interest. So this explains to you how a stablecoin can pay interest from the collateral.