Adam Brown — Bubble universes, space elevators, & AdS/CFT

The universe’s ultimate fate remains uncertain, with accelerated expansion driven by dark energy potentially leading to a heat death. Theoretical possibilities exist for future civilizations to manipulate the cosmological constant through vacuum decay, potentially avoiding this outcome. While such engineering is speculative and fraught with existential risk, it remains consistent with current quantum gravity theories. Large language models are rapidly advancing, now capable of solving graduate-level physics problems and acting as sophisticated research assistants. Despite current limitations in generating original conceptual breakthroughs, these models demonstrate significant potential for pattern recognition in vast astronomical datasets. Historical accounts of nuclear weapon deployment suggest that significant actions occurred against direct orders, highlighting the fragility of command structures. Finally, hitchhiking serves as a unique lens for observing human behavior, revealing a cross-section of society that challenges conventional social boundaries.