My previous post also assume you’re one of the many few who chose to continue to pay your mortgage even when your house went down 50+% in a depression. If you’re like many who just send back your key, your $1M would go A LOT longer than 10.8 years. You just send back your key and rent a comparable place for less. Or you can can be like many who stop paying but still live in the house while waiting for it to be foreclosed. Or you can move to where the job is, or you can move to an area that cost a lot less to live while riding out the storm. Flexibility and cash is worth a lot when you’re hit with something drastic like a great depression.