system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: how did people live in cold-weather climates before modern day heating/clothing?
gpt
They wore furs and kept fires burning. Fires were the main key to surviving and it was common practice for the hearth of a home to never fully go out, but rather reuse embers in the morning. Clothing was thick and used fur and sheepskin, the rich used MORE fur and could also wear spun wool.