https://www.acronymfinder.com/Slang/OFFS.html

It seems that we have asked a bit too many pointed questions..

"An observation is something that you have learned by seeing or watching something and thinking about it.

From: Observation definition and meaning | Collins English Dictionary

I will say only that the dictionary definition doesn't help when one is trying to understand the process of moving from observation to opinion. Two people can read the exact same articles, listen to the same anecdotes, and come to different conclusions.

(12 paragraphs on the concept of causality omitted for your pleasure)

I am a science fiction fan, and I LOVE the idea of telepathy. Dozens of creative stories exist about it, and I know people who...etc...

I also am fascinated by stories of human levitation.. and I met a man a few years ago who casually asserted that he had done it, but when I asked for a demo.."Oh, this isn't the time or place."

There was a movie called "Interstellar" which painted a fascinating look at spatio-temporal distortion... (guy travels thru wormhole and learns about 'beings' who are now something like pure thought... then comes back to tell his daughter in the past how to save civilization.)
   I 'observed' that they were testing my credulity... but entertainingly. Our departed pal Amos **believed** something similar.

and so it goes..