We know very little about complex financial systems and how systemic risk, as it’s called, is computed and how you would manage policies. And if you look back at the financial crisis, you can either say, as many economists do, “It all had to do with badly‐designed rules,” which may be part of the story; it’s certainly part of the story. Or it may have to do with the interaction of those rules and human nature, like mortgage broker greed, optimism… And you see it not just in individuals who now have houses and foreclosure, but at the highest levels.
In brain decoding, we take our model that we’ve developed of the brain (and this can be a model for anything, vision or language) and we reverse it. And instead of going from the stimulus to the brain activity, we go from the brain activity back to the stimulus.