Observing String Theory's Landscape of Vacuums

Physicists Joseph Polchinsky and Raphael Busso were studying certain aspects of string theory, the leading mathematical framework for describing gravity's quantum side. String theory works only if the universe has some 10 dimensions, with the extra ones curled up into shapes too tiny to detect. In 2000 they calculated in 2000 that such extra dimensions could fold up in a tremendous number of ways - each way would form a distinct vacuum with its own physical laws. Despite string theory's seemingly infinite menu of vacuums, so far, no one has found a specific folding of tiny extra dimensions that corresponds to a vacuum like ours,. The multiverse potentially solves a great mystery, the ultra-low energy of our particular