We need to seal our buildings to contain energy, and condition the inside temperatures.
We can still ventilate our buildings by having opening windows and doors, or controlled ventilation units.
Avoid condensation and mould, by ventilating properly.
But if we don’t have controlled environments, the icecream inside will melt.
Please see my article: Nathers scheme based on untested premise, a Sourceable article
A bit of debate generated there. I like that. At least we are thinking!