Re: [LAD] twice as loud

I do think it has something to do with intensive vs extensive in the following way: when we talk about sound waves, temperature, smell, brightness, etc, these are macro-observables representing a statistically huge number of micro-states. This is how our human senses make sense of these huge sets (cf. statistical physics founded by Boltzmann that explains classic thermodynamics). It is therefore difficult for our brain to strictly quantify variations of these huge sets that our senses can only approach "roughly" by statistical "reduction". On the other hand, any discreet observable that our senses can reach directly (e.g. volume of an object of the same size order as our own body) is easily quantifiable. Just a guess ...