system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Walking on hot coals and why losing focus causes your feet to get burned.
gpt
Walking on hot coals is a trick.  The coals may be hot, but they don't transfer heat very quickly.  And if your feet are wet, the water provides extra protection.

You need "focus" to keep walking at the right speed.  Walk too slow, your feet stay in contact with the coals too long.  Walk too fast, you exert too much force and your feet sink down to where it is hotter.