Tegmark’s Level II Multiverse: bubble universes

I recently finished reading Max Tegmark’s latest book, ‘Our Mathematical Universe‘, about his views on multiverses and the ultimate nature of reality.  This is the second in a series of posts on the concepts and views he covers in the book.  Tegmark postulates four levels of multiverse.   In the first post of this series, I described Termark's Level I … Continue reading Tegmark’s Level II Multiverse: bubble universes

Science, philosophy, and caution about what we think we know

What is the difference between science and philosophy?  While there are enterprises that are clearly in one or the other, the dividing line isn't always a sharp one.  Science grew out of philosophy, particularly natural philosophy.  Some would say that science is itself a type of philosophy.  But what is the difference between what we … Continue reading Science, philosophy, and caution about what we think we know

Why FTL travel is unlikely, at least in the foreseeable future

I'm a big fan of Star Wars, Star Trek, and the space opera genre.  The future I would most hope for the human race would be for us to spread out among the stars and become an interstellar species.  Now, assuming we don't drive ourselves extinct, I do think we will eventually become an interstellar … Continue reading Why FTL travel is unlikely, at least in the foreseeable future

Buzz Blog: Getting Einstein to Say “I Was Wrong”

Buzz Blog: Getting Einstein to Say "I Was Wrong". An interesting post about how slow Albert Einstein was to accept the expanding universe cosmology.  It demonstrates that all of us, no matter how brilliant, are often unable to see past our own blind spots.  Of course, most of us would love to have Einstein's hit … Continue reading Buzz Blog: Getting Einstein to Say “I Was Wrong”