An Argument from Size

The comments in the linked blog post are not new. I see them quite regularly in discussions with Christians. Like the referenced blog post the argument typically hinges on getting things wrong, because if those who made the argument actually made the effort to get their thoughts right, they’d not make the point.

A few quick corrections.

  • Looking for evidence of aliens does not in any way equate to belief in a deity. Extraordinary claims do require extraordinary evidence and someone who claims that there are actually aliens will come under that category. Places where alien life could exist can be measured because we know life requires water and energy so looking for planets with water that orbit a star is a good place to start. Scientists doing this are not worshiping those aliens and nor are they crediting those aliens (if they exist) with creating this world, the conflating of the search for evidence of aliens with religion is bogus and an utter mischaracterisation of the scientific process.


  • Not believing in a god is not the same as believing there are no gods. The state of non-belief is the position between two opposing beliefs. I don’t believe there is a god; that is I neither believe there is a god nor believe there are no gods. I sway strongly towards there being no gods and I will argue that position, but I’m not at the point where I believe it. I don’t believe there are aliens. That is I neither believe they exist nor believe there are none. I sway strongly towards there being aliens somewhere out there and I will argue that it’s likely but I do not have enough information to state with any confidence that they actually do exist.


  • Agnosticism is a position of knowledge, atheism is a position of belief. It is possible to be both agnostic (not having the knowledge to determine if there is a god) and atheist (not having any belief in any god). I identify as both.


  • The universe does not contain any proof for the existence of god. It does however contain proof to answer the question of the existence of aliens. Let’s go searching!

Lyle Duell

An Argument from Size

Once I had an atheist tell me that extraordinary claims need extraordinary evidence.  Now, this may or may not be true, but it does demonstrate something about a number of atheists that I know.  It demonstrates  the inconsistency in their thinking for they say they cannot believe in a God  that they cannot see, for which they point out that there is no scientific evidence. And yet they believe that it is likely that there are alien life forms in the universe, which they have not seen nor do they have any evidence for their existence. I’ll grant that this may change at any time, however, for now it is the truth based on current knowledge.

They say the reasons for their readiness to accept alien life forms are based on the size of the cosmos and probability[1].  However, does not size and probability…

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