Posts tagged ‘drake equation’

September 14th, 2014

Podcast: What Kinds of Multiverses are There?

by Max Andrews


Contemporary physics seem to indicate that there are good reasons, theoretically and physically, for an idea that there is a plurality of worlds. This concept has come to be understood as the multiverse. The multiverse is not monolithic but it is modeled after the contemporary understanding of an inflationary model of the beginning of this universe. Max Tegmark has championed the most prominent versions of the multiverse. Tegmark has made a four-way distinction.

Levels of the Multiverse

July 12th, 2012

The Multiverse Directory

by Max Andrews

I have gathered together all my posts relevant to the multiverse. Since this is one of the biggest topics on the blog, I thought having all the posts gathered into one place would make finding the content much easier.

  1. Quantum Entanglement and the Many Worlds Interpretation
  2. Cosmic Darwinism: Evolving Laws of Nature?
  3. A Theological Argument for Many Worlds
  4. Fine-Tuning of the Multiverse Lecture and PPT
  5. The Multiverse and Causal Abstract Objects
  6. An Outline of Tegmark’s Four Levels of the Multiverse
  7. This History of the Multiverse and the Philosophy of Science
  8. The Theological Attraction of the Multiverse
  9. Hugh Everett and the Many Worlds Interpretation
  10. Decoherence
  11. Physical Evidence of the Multiverse
  12. The Multiverse, Fine-Tuning, and Nomic Probabilities
  13. The Exceptions to the BVG Theorem
  14. Loop Quantum Cosmology in the Cosmic Microwave Background
  15. I’m Presenting a Paper at EPS on God and the Multiverse
  16. Plantingan Modal Realism
  17. Nonlocality as Evidence for a Multiverse Cosmology
    read more »

April 17th, 2012

A New Drake Equation: The Probability of Life in the Multiverse

by Max Andrews

The Drake equation is advocated by SETI (Search for Extra Terrestrial Intelligence) to show that the probability for ETI has a high probability (N).


  • N* Number of stars in the Milky Way
  • fp Number of habitable planets in each system
  • ne number of planets that are Earth like
  • fl number of planets that emerge from inorganic matter or organic precursors
  • fi fraction of those planets on which intelligent beings also evolve
  • fc fraction of those planets on which sufficient communications technology arises
  • fL fraction of average planet lifetime

The problem with the equation is that each f is a number between 0 and 1, the product of the equation will be vastly lower than the total number of suitable stars in the galaxy N*.  Many variables are unknown.  So, the numbers that are brought in depend profoundly on the assumptions we bring into the problem.