What's with Android telling me what volume I should have my music at? If I want to deafen myself, then that's up to me!

\m/ this thing goes up to 11!

I don't have problems with that warning, but I think it should be more "smart". Eg, my shitty headphones I barely hear the music on highest volume. But my good headphones, I pull out the plugs already at volume level 3. (and no, theres no amplifier in those).

it must be a way to sense that, like measuring the impedance and calculating IRL decibels.