In May and June 2025, Sergey Brin made several public appearances discussing the future of AI and Google's work. At Google IO in May 2025, Brin said he did not think "we really know what the world looks like in 10 years" due to the rate of progress in AI. He also commented on the simulation hypothesis, stating that if humans are in a simulation, the argument would apply recursively, leading to an "infinite stack of simulations" or a need for a "stopping criteria." He said he does not believe humans are "really equipped to reason about sort of one level up in the hierarchy." At an AGI House event in June 2025, Brin discussed the convergence of specialized models into general ones, noting that "increasingly our main Gemini LLMs can be the state-of-the-art for math" and other scientific questions. He defined AGI as "the idea of the AI can actually improve itself," while acknowledging that others define it as an AI that can "do anything a person can do." Brin said he felt "very good about where Gemini is" but acknowledged that Google was "a little bit late on really focusing deeply" on coding, giving kudos to competitors like GPT-5.5 for overnight coding tasks while pitching Gemini 3.5 Flash for speed. On the Moonshot Podcast, Brin reflected on X's work, saying the company was "premature at productizing" some projects like Google Glass, but that it served as a "phenomenal learning platform." He also expressed interest in Von Neumann machines, describing the concept of building something that can "build itself" and "exponentially build something."