You don't think it's a bigger assumption that plowing hundreds of billions of dollars into a novel and often misunderstood technology is going to net out positive? We're not talking "people like feeds of cat photos" money and risk here, we're talking about a bubble with the potential to tank the entire economy. On top of that, it's also a higher disruptive technology that should it ramp as quickly as it might will lead to massive amounts of societal strife at a time where we're already stretched a little thin to say the least. "What do you mean Credit Default Swaps don't work? They've been functioning perfectly well these past few years and so far the impacts have only been positive. Tons of people are getting mortgages on houses they weren't in the past, it's the American dream!"