2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/197846We address issues on the origin of gravity and the dark energy (or the cosmological constant) from the perspectives of emergent gravity. We discuss how the emergent gravity reveals a noble, radically different picture about the origin of spacetime, which is crucial for a tenable solution of the cosmological constant problem. In particular, the emergent gravity naturally explains the dynamical origin of flat spacetime, which is absent in Einstein gravity.2 pages; Contribution to Proceedings of the workshop "Progress of String Theory and Quantum Field Theory", Osaka City University, Japan, 7-10 December 2007High Energy Physics - TheoryGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenologytext