But the most significant change in modern science is not just about the amount of noise, but how we experience it. Noise is no longer understood solely as a problem that affects hearing, it is also recognised as a systemic environmental pollutant. Transport noise is now one of the leading environmental cause of illness in Europe, second only to air pollution.
Been riding for nearly two decades at this point but this is a myth. People fail to hear emergency vehicles. Your loud pipes aren’t saving you.
No they aren’t, but it makes them feel less shitty about the behavior.