This document summarizes a think tank on rebuilding Jewish communities by attracting and retaining young adults. It discusses empowering young professionals, the impact of $100,000 invested in programming for young adults, and a long-term strategy to engage Jews from high school through post-college through cultural, social, professional and volunteer opportunities. It also proposes establishing a "test lab" to share best practices between communities and enhance successful programs. The think tank encourages communities to think ambitiously and empower young influencers while communicating effectively.