Shell within shell is perfectly valid design for buildings and is found in nature as well. I am not an architect, am sure there are better solutions out there

Shell within shell is perfectly valid design for buildings and is found in nature as well. I am not an architect, am sure there are better solutions out there beyond what I know. Popularity is not a good measure of something is better. There are many aspects of ventilation that are actively studied still , it by no means a solved problem, just look at heating in London Underground for real world modern problem . Closed areas and Smooth surfaces with leas surface area are terrible for radiation and air cooling . Buildings are not static objects they are heat sources as well. Insulation and ventilation are different concurrent problems , some places need both equally , some need a lot of insulation and less of cooling and some need other way around . There is no one universal solution. You are right I shouldn’t have called it closed minded . I gave it a charitable reading , reading back once more it is definitely racist not just closed minded , the parent post also called it culturally inferior not just technically so.