In a Multiverse, What Are the Odds? "Testing the multiverse hypothesis requires measuring whether our universe is statistically typical among the infinite variety of universes. But infinity does a number on statistics." (previously) [more inside]
Decades of confounding experiments have physicists considering a startling possibility: The universe might not make sense. For you Saturday night science read, a very interesting science article, one of many on the Simons Foundation web site
The Nature of Computation - Intellects Vast and Warm and Sympathetic: "I hand you a network or graph, and ask whether there is a path through the network that crosses each edge exactly once, returning to its starting point. (That is, I ask whether there is a 'Eulerian' cycle.) Then I hand you another network, and ask whether there is a path which visits each node exactly once. (That is, I ask whether there is a 'Hamiltonian' cycle.) How hard is it to answer me?" (via) [more inside]
Holt’s philosophers belong to the twentieth and twenty-first centuries. Compared with the giants of the past, they are a sorry bunch of dwarfs. They are thinking deep thoughts and giving scholarly lectures to academic audiences, but hardly anybody in the world outside is listening. They are historically insignificant. At some time toward the end of the nineteenth century, philosophers faded from public life. Like the snark in Lewis Carroll’s poem, they suddenly and silently vanished. So far as the general public was concerned, philosophers became invisible. [more inside]
Brian Greene's Fabric of the Cosmos is online in its entirety on NOVA's website, in four one-hour episodes. Time, Space, Quantum Mechanics, Multiverses.
Is the Multiverse Real? Discover takes a look at theories that our universe is one of many. This blogger adds some interesting commentary. via
Imagining the Tenth Dimension (Flash). 10th dimensional physics and string theory don't get any easier than this.