White noise is the 'sh' backdrop of ambient sound, creating an indistinct seamless commotion.  We can train ourselves to tune out (ignore) a majority of the white noise in our surroundings.  We can learn to live with and even learn to ignore the sound of traffic or the sound of a waterfall. We stop hearing the sounds of electric appliances humming in our homes. As long as the noise isn't disruptive, we frequently stop listening to it.  Being able to tune into or tune out the sounds around you can be both helpful and harmful aspects for the small business entrepreneur.  What are you missing because you're blocking input? What might you be achieving because white noise allows you to focus?