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  • Brian Greene: Why is our universe fine-tuned for life?

    At the heart of modern cosmology is a mystery: Why does our universe appear so exquisitely tuned to create the conditions necessary for life? In this tour de force tour of some of science’s biggest new discoveries, Brian Greene shows how the mind-boggling idea of a multiverse may hold the answer to the riddle. Brian…

  • Reality Tunnel

    Certainly do not know who the fellow is in present image(Gregg Braden)…..but for now,  that is not important. He is not important and his message…..about life…..I am concerned about the science. As I watch the Tibetan Monk there is a question for me about the boundary and the infinite. These same notions of belief about…

  • Another Kind of Sideways

     I wanted to expand on where the title,”Another Kind of Sideways.” This blog posting  came from an interview with Clifford of Asymptotia by PBS. He had a posting of his own entitled Multiverse Musings about a Nova series on PBS in the Fall related to Brian Greene’s book, The Fabric of the Cosmos. Where would…

  • The Multiverse is like a….Flower?

    Alexander Vilenkin The implications of inflation are particularly important in the context of the landscape of string theory. One of the leading researchers studying how inflationary cosmology evolves through the landscape is Alex Vilenkin, a theoretical physicist at Tufts who has been working in the field of cosmology for 25 years and is a pioneer…

  • Tegmark’s Multiverse Q and A?

    The key question is not whether parallel universes exist (Level I is the uncontroversial cosmological concordance model), but how many levels there are. I discuss how multiverse models can be falsified and argue that there is a severe “measure problem” that must be solved to make testable predictions at levels II-IV. Dialogos of Eide

  • Cyclic Universe Could Explain Cosmological Constant

    Thanks Paul for pointing this article out here some time ago. Physicists have proposed several theories to explain why Λ is so small. One of the most popular — the “anthropic principle” — states that Λ is randomly set and has very different values in different parts of the universe (figure 1). We happen to…

  • Writing Your Story of Creation?

    “No container is available, and the vaporization must occur in vacuum.” Wozniak With all that energy concentrated in a space about the size of an atomic nucleus, the colliding ions, for a tiny fraction of a second, will reach a temperature one hundred thousand times hotter than the core of the sun – hot enough…