system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come when we touch something hot, it takes a few seconds to realize its full hotness?
gpt
Heat is energy transfer from one object to another. Since it's not instant it takes some time for the energy to transfer. So you can grab something hot and your skin takes a moment to get enough energy or heat for your nerves to start going "TOO HOT"