system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does tea infuse better in hot water rather than cold water?
gpt
Infusion of tea just means that the tea is spreading out and dissolving in the water. 

Things dissolve quicker in hot water because hot particles move faster. That's what temperature is - how quickly particles vibrate. So if particles are vibrating faster then they move around quicker.