First, a disclaimer: please don't link me to a list of abstracts from arXiv. I can do the literature search myself. Now, a question. I was reading in Scientific American June 2008 issue about this new approach to quantum gravity, called Causal Dynamical Triangulations. The author(s) of the article state that they assume a positive cosmological constant, and are led to a deSitter space-time. Was it ever a question that a positive cosmological constant would give a deSitter space-time?