Comment Re:Just road traffic noise? (Score 2) 61
I don't know if it's plain volume or some more subtle characteristic of the noise; but I'd suspect that there's more to it than noise alone; given how rare(and often slightly disconcerting in practice) genuinely silent environments are and would have been in evolutionary history.
Even in totally undeveloped areas where you and your little teeny band of hunter-gatherer pals are the only thing going the wind is always up to something; some combination of birds and insects will be doing their thing depending on temperature, if there's a body of water of any size or moving water you'll hear some flow or wave action.
Could be pure intensity; a lot of modern noise is quite intense close to its source; could also be something about how it is interpreted and how readily it is or isn't discarded as background vs. forcing some amount of constant active attention.
Even in totally undeveloped areas where you and your little teeny band of hunter-gatherer pals are the only thing going the wind is always up to something; some combination of birds and insects will be doing their thing depending on temperature, if there's a body of water of any size or moving water you'll hear some flow or wave action.
Could be pure intensity; a lot of modern noise is quite intense close to its source; could also be something about how it is interpreted and how readily it is or isn't discarded as background vs. forcing some amount of constant active attention.