The document discusses how online games can facilitate the development of 21st century skills. It notes that games are primarily social activities where players often learn skills such as problem-solving, decision-making, teamwork and communication without intending to. The document suggests online games and virtual worlds could help players develop skills like managing information, relating to others, and thriving in diverse and changing environments. It poses questions about whether online games and virtual worlds will become more mainstream and influence how education approaches informal learning in the future.