system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If listening to loud music is bad for your hearing, when you're in your car and roll the windows down the volume is less. Does the same volume level still hurt your hearing, or does the amount of space opened negate the fact?
gpt
The volume level may still hurt your ears but the level is lower. 

Decibels is a pressure measurement, so when you open the windows, you effectively increase the volume of the car and hence lower the pressure. You'll also reduce the amount of harmonics and reflected sound waves. 

Keep in mind that hearing damage starts at around 85dB, this is the level where you have to raise your voice above a normal level to be hear (good approximation anyway). dB are also not measured linearly, so hearing damage increases dramatically with increased dB level. 

Hearing damage is permanent and we have no way of reversing it. It's extremely socially isolating and affects both yourself and those around you. Imagine no longer being able to listen to your favourite music, not being able to hear your partner, not being able to hear the first words of a grandchild or even a child. Be smart, don't ruin your hearing!