Two Is Better Than One and join. A music video ecard was also released for the song. The single was sent to mainstream radio in the United States on October 19, 2009. FMQB Mainstream Releases "Two Is Better Than One" debuted at number 92 on the "Billboard" Hot 100. It fell off the following week but re-entered at number 79 and rose the following week to number 64. After a few weeks, the song then reached its peak at number 18 on the chart. It has since become Boys Like Girls' third top 40 on the Hot 100 as well as Swift's twenty-first entry in
One-third hypothesis theory. One-third hypothesis The one-third hypothesis (OTH) is a sociodynamic idea—advanced by Hugo O. Engelmann—that asserts that a group's prominence increases as it approaches one-third of the population and diminishes when it exceeds or falls below one-third of the population. As the one-third hypothesis was stated originally by Hugo O. Engelmann in a letter to the "American Sociologist" in 1967: "...we would expect that the most persistent subgroups in any group would be those which approximate one-third or, by similar reasoning, a multiple of [i.e., a power of] one-third of the total group. Being the most persistent, these groups also