That fancy, exotic technology you're describing only works well if you actually have some place quieter to move to, or have music you can blast that you can lis

That fancy, exotic technology you're describing only works well if you actually have some place quieter to move to, or have music you can blast that you can listen to while working. Not everyone works in an office with spare rooms. And not everyone enjoys listening to metal or house. Cranking up the volume on, say, Erik Satie won't do much to mask background noise.