

Because of normalisation. The more you experience anything, the less spectacular it becomes.
Teenage kicks in particular needs something that is amped up from what was before. Hence evolution of music and culture has always been driven by youth and keeps pushing the limits of what is doable and eventually what is normal.














You’re not wrong in any way but I would just like to clarify in the most friendly way that the use of spectrum in audio context is frequencies and not amplitude. Compressing the frequency spectrum is not really desired unless for in very particular applications like specialized lossy audio compression, which in turn is even more confusing the terminology because now compression is about reducing the data rate in a controlled degradation. Anyway, the proper terminology would be that the audio is dynamically compressed to a smaller range.