Bill, traffic spikes help to slowly build your level of steady traffic. It’s generally the case after a large traffic spike hits, you get a portion of those people either returning, linking to your page or spreading your ideas to others - when this happens traffic levels increase marginally or sometimes dramatically (though not as often) after each spike. Think of it like building muscle, you work out hard on Tuesday and then are all healed up by Friday/Saturday, ready to lift just a little more weight. In our example images we didn’t zoom in to show the details of the before and after traffic, just the large spike in traffic.