Planck-scale physics: facts and beliefs
arXiv:gr-qc/0601097 · doi:10.1007/s10699-006-9102-3
Abstract
The relevance of the Planck scale to a theory of quantum gravity has become a worryingly little examined assumption that goes unchallenged in the majority of research in this area. However, in all scientific honesty, the significance of Planck's natural units in a future physical theory of spacetime is only a plausible, yet by no means certain, assumption. The purpose of this article is to clearly separate fact from belief in this connection.
14 pages, Latex