Looks really cool, but the air in the bubble would go really stale really quickly and that always makes me nauseous. They wrote that “the tent works on an over-pressurised system where air is constantly refilling the tent via a turbine that is battery and solar operated. This turbine acts as an air conditioner and keeps the temperature comfortable no matter the weather.” But I’m skeptical. The air out on the deck would be a lot better.
Plus the constant hum of the “turbine” would be annoying out in that solitude where you want to enjoy the quiet.
Too bad they could figure out how to add opening windows to the structure. But it would probably deflate if you opened a window.
I love fresh air, too. The hard thing would be overnight. During the day you could leave the door open long enough to get some air change. Do fans help you even if the air is the same?
Not necessary at all.
Assuming that the "bubble" is sufficiently leak proof, it would only be necessary to provide a controlled opening matched to the pump providing conditioned air to get all the air changes one would want.
The biggest problem I see would be preventing condensation on the inside of the bubble due to the cold outside. There would also be considerable heat loss through the material of the bubble. Air changes? Not a worry.