  In order to understand the atmospheres as well as the formation mechanism of
giant planets formed outside our solar system, the next decade will require an
investment in studies of isolated young brown dwarfs. In this white paper we
summarize the opportunity for discovery space in the coming decade of isolated
brown dwarfs with planetary masses in young stellar associations within 150 pc.
We suggest that next generation telescopes and beyond need to invest in
characterizing young brown dwarfs in order to fully understand the atmospheres
of sibling directly imaged exoplanets as well as the tail end of the star
formation process.
