For people interested in construction I really recommend checking out Passive House Accelerator on youtube (https://www.youtube.com/channel/UCFsq1de6hTZOuwQd46p

For people interested in construction I really recommend checking out Passive House Accelerator on youtube (https://www.youtube.com/channel/UCFsq1de6hTZOuwQd46pRUQg https://www.youtube.com/channel/UCFsq1de6hTZOuwQd46pRUQg). Building energy efficient homes from regenerative and recyclable materials makes more sense than a stone and steel bunker. A good intro to Passive House Design: https://www.youtube.com/watch?v=ZxeuRByPpeM https://www.youtube.com/watch?v=ZxeuRByPpeM