I'll just point out at this juncture that observation, in a scientific sense, doesn't necessarily mean being an eyewitness. The observation is the phenomenon under investigation (objects with mass fall to the ground, the Universe is expanding, biological organisms reproduce imperfectly causing change over generations, etc). The observation in this case would be that people are claimed to have witnessed and recorded these events. Now we get to test that observation.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'