I'm sittin here with five options to change the volume. I've a slider on my keyboard, a controller on the speakers, a rocker on my monitor, another volume control embedded within the video player, the Windows volume adjustment. Plus there's on on my headphones.
I know there are more important issues in the world today but do you think it would be possible to create a device, or software, that automatically adjusts the volume outputs across the board? I dunno, perhaps a little ear plug that listens and regulates accordingly.