Hundreds of theories to explain the purpose and function of the Great Pyramid of Giza have been proposed, from the prosaic “tomb theory” to the very controversial “machine theory”, “Atlantis theory” and “aliens theory”. Yet most of these theories generally ignore the intense astronomical and mathematical coding that is incorporated in the design and alignment of this extraordinary monument, as well as the cosmology expounded in the Pyramid Texts. Uncannily, the astronomy provides a specific ‘address” in our Milky Way Galaxy, and the mathematics provides irrational constants, ratios and prime numbers which, together, strangely resemble the “universal language” of science. Furthermore the cosmology derived from the Pyramid Texts uncannily resembles modern scientific cosmologies and the latest cutting-edge ideas in quantum physics and neuroscience. In his talk Bauval will explore the possibility of “Intelligent Design” in relation to the Great Pyramid, and will postulate that this monument, as well as the whole Giza ensemble including the Sphinx, may be the quintessential ‘message in a bottle’ across time and space.