The endless supply of 17-23 year old girls that send photos to web sites to test (raise) their market value (SMV), and the endless supply of men’s attention that will never tire of ‘window shopping’ same sites (pages, streams, forums). The age of 23 is peak female SMV (market value), because it is peak fertility. However, long term SMV, differs greatly. In other words, it’s pretty hard to be 23 and not attractive. It’s pretty hard to be over 35 and be attractive. And only the best genes last beyond 45. Now men, we don’t peak until 34 or so, and our SMV only increases if we remain fit, sociable, and have assets. The difference between the genders is that we can choose to have high SMV – OR CHOOSE NOT TO.