I don't think assumption is all that bad in small quantities. I think it affects others more than some others.
For example assuming a neighborhood is bad. I once did a job whereby I go in I didn't notice anything but the guy opened up the door I handed him the package told him I was doing. And he's like "Oh great good to hear I was worried as we had some break ins in our neighborhood and some houses and cars were broken into".
I was like "Shame to hear anyways gotta go".
The thing about assumption is it could be a method to project higher intelligence for example someone says something and you have a flash of superstition pop up. It's not wrong perhaps more specifically assumptions are a monkey-see, monkey-do mentality it's a primal intuitive flash of superstition to understand an object.
For example they say Nikolai Tesla had engineering siddhis. He can view an object bring it in focus to his mind and deconstruct it, reconstruct it and then he intuitively knows how to dismantle and reconstruct the object in question. If said case is like that.
Then isn't the obvious of assumption merely the use of spirituality and mentality in an ignorant manner assuming lack of spirituality.
It seems almost like a spiritual property. Of course the thing is that assumptions are just another mental process. 99% of people can only limit their mind or void their mind for a few moments a momentary pause such as focus on a sound. It might just be a rampant thought process on simply thinking and wondering about something.
Fact of the matter is it's more and more like simply a knowing to simply know. Most people don't care about learning or processing they just want learn stuff just to pass the time. I'm not saying assuming is of a low civilization but perhaps we had an imprint of higher understanding and higher development and this is us reliving history. Maybe a destroyed rebuilding civilization rather than a higher.
Another possibility is assuming is a higher function downgraded through lack of training.
Yes assumptions can fuck up but some people have done things with assumptions. For example maybe someone assumes the oddly walking guy is carrying a gun and you draw your weapon behind him and hold him hostage and notice he does have a gun and does plan on committing a killing not unlike in Japan with Shinzo Abe. Maybe if Japan was more armed and people assumed this person seems strange lets gang up on him and assume he is a danger.
I think it's akin to Karma or Luck/Fortune there is Good karma/luck/fortune, neutral karma/luck/fortune, and bad karma/luck/fortune.
Maybe as an unexplored science of spirituality, physicality, and mentality hell maybe even technological assumption such as weak, strong AI, software algorithm and pattern/s discovery say for a credit card and suspicious activities bringing a warning to a credit card representative. It's probably a science we have lost and don't know how to remove the negatives.
If assumptions are bad in general or bad overall then it seems like Humans elevated to the status of Gods akin to the enemy. We are Gods incarneth, we are chosen, you can do whatever your a God who cares when you die you ascend to paradise of heaven.
In other words hijacked civilization believing in false ways of living or erroneous ways of living.