Oort Cloud 

A cloud of comets that some astronomers believe exists at the edge of the solar system. There is no evidence to prove the existence of this cloud.

Astronomers believe in the Oort Cloud.

Oort Cloud by David March 8, 2004

Oort Cloud Fallacy 

"The Oort Cloud Fallacy occurs when someone argues that something must exist or be true simply because it is theoretically possible or hasn't been definitively disproven—especially when the claim is distant, vague, or unverifiable. The fallacy draws its name from the Oort Cloud: a hypothetical region of icy bodies surrounding the solar system that has never been directly observed but is widely accepted due to indirect evidence."

"Hey John, do you believe God exists." "We have no proof he doesn't so he must." "Oort Cloud Fallacy."

Oort Cloud Fallacy by TwinArchive September 28, 2025