In the context of "Community is the App Missing from Reality," William's phrase "remember second life" likely references the virtual world platform Second Life, which was popular in the mid-2000s. It serves as a metaphor for the ways in which people can engage in community and social interactions in virtual spaces versus real life.
By saying "remember Second Life," Williams might be encouraging readers to reflect on how virtual communities offer unique experiences and interactions that are sometimes lacking in the physical world. This could point to the idea that while real-life connections are valuable, digital platforms also allow for robust forms of community-building and expression that might not be as accessible in reality.
Thus, the phrase serves as a reminder of the complexities and dynamics between online and offline interactions, prompting readers to think critically about their own experiences within these spaces.