system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5: Why is tile always cold?
gpt
Some substances like water and stone conduct heat really well. When they're hot and you touch them, you heat up really quickly, and when they're cold and you touch them, they suck all the heat out of you.

It's why a 'dry heat' isn't considered as bad, why you can catch hypothermia if you're wet in a freezing cold day, and why tile always feels more cold underfoot. If you held a thermometer to tile and hardwood they'd be the same temperature, but the tile brings your foot down to it's temperature very efficiently, so it feels colder.