Obviously we have a lot of the looming climate apocalypses baked in already, so one of the things I worry about these days is what should we be focusing on? Should we just be focusing on resilience? If we have a vague sense of what's in store for us, should that be our focus? Another thing is that if anything, I'm really trying to drive home the message that any action we take has to be carbon neutral or carbon negative in a very short period of time. We talk about this in the book somewhat, that there's a lot of products out there that can get your house to be incredibly energy efficient, but the carbon intensity of those materials, especially things like foam insulation is the typical example, the CO2 equivalent in them is in the thousands or tens of thousands. So it could easily take a century for the energy savings to pay off the carbon load of those materials. And we don't have a century.