Putnam then contrasts the countertrends of ever increasing mass-membership organizations, nonprofit organizations, and support groups to the data of the General Social Survey . This data shows an aggregate decline in membership of traditional civic organizations, supporting his thesis that . social capital has declined. He then asks the obvious question "Why is US social capital eroding?".  He believes the "movement of women into the workforce",  the "re-potting hypothesis"   and other demographic changes have made little impact on the number of individuals engaging in civic associations. Instead, he looks to the technological "individualizing" of our leisure time via television , Internet , and eventually " virtual reality helmets".