We've been in the house now since the beginning of August, and we're beginning to get the hang of it. We incorporated both natural ventilation and and energy recovery ventilator (ERV) into the house, and therefore, we make conscious decisions on how and when to use them to achieve thermal comfort and good indoor air quality. So, we use our brains to manage the systems: turning the heat pumps on to heat or cool, cranking up the ERV to exhaust pollutants, opening and closing windows for natural ventilation, turning on the ceiling fans to cool, or push warm air down. I was thinking that all of this could be managed with a programmable system, in which the heat pumps, ERV, electrically operable windows and fans would communicate with each other to achieve optimal results without manually fussing with them. I'm sure there are systems available now that can do this to a certain extent, esp commercial larger scale buildings. Our zoned heat pumps have thermostats and set points, and our ERV has a CO2 sensor which kicks the ERV up when the CO2 elevates too high, so we have a certain level of programmability already. But, in the future, through technological evolution, we'll probably have system management that will "learn" how we use the systems, as well as all of the energy usage and appliances, and will adapt and control them to achieve our preferences. It's kind of like evolution...or is it intelligent design?