Data is typically seen as an asset for a given origin.

But it should be seen more as a liability.

Origins should prefer not to have the data with all the downside risk of having sensitive data.

There should be ways for creators of code to write arbitrary code that runs blindly.

This would allow them to do useful things for users on sensitive data… the only tradeoff is the creator of the code can't see the data or its derivatives directly.

This would allow safe "you can run anything."