The discussion explores the concept of whether the world inside a cell is infinitely small if the outside world is considered infinite. Participants debate the distinction between physics and philosophy in this context, noting that while the outside can be infinite, it does not necessitate that the inside must be infinitely small. They highlight that both finite and infinite spaces can coexist, challenging the assumption that smaller systems must lead to infinitely small spaces. The conversation also touches on the nature of thought experiments in physics, acknowledging their role in scientific advancement despite the difficulties in validation. Ultimately, the topic raises intriguing questions about perception and the structure of reality at microscopic levels.