In internal emails revealed during the ongoing Meta antitrust trial, CEO Mark Zuckerberg expressed concerns that Instagram’s growth could cannibalize Facebook, potentially leading to a 'network collapse.' He suggested building stronger connections between the two platforms to mitigate this risk. Zuckerberg emphasized that Facebook's user engagement declines when users join Instagram, raising questions about the viability of their dual growth strategy. The FTC aims to prove Meta's monopoly, and if successful, may force a spin-out of Instagram and WhatsApp, echoing Zuckerberg's earlier suggestions. Meta has downplayed the significance of these emails.