Knowing and believing are not the same but similar - because of their common source. Science and religion are not the same but similar - because of their common source.
Knowing and believing can be almost similar within a minimum of variance, or, they can be nearly dissimilar without a maximum of variance, regardless their common source.
Science deals with logical explanation and reason sometimes observable objectivity. Belief deals with dreaming and imagination without evidence needed.
Scientific theories [not specifically-theoretical] are knowledge not belief because they have the following;
80-99.9% subjectivity : 95-99.9% Objectivity
Speculative scientific theories which have yet to be tested and verified empirically are beliefs because they have’
Beliefs = 75-99% subjectivity : 1-25 Objectivity
As one will note Kant’s approach is very systematic and the above sub-system will fit tightly and justifiable within a total framework.
There was a short lived time when Science was science and the phrase “Nullius in Verba” actually meant something.
Today, Science has become nothing more than another religion, preached with dogma for the masses and a basis for condemnation - the national religion of the USA, China, and many other socialist and communist nations.
And just as the other religions, Science is based upon its particular ontology. The ontology shifts in the same way that Judaism shifted its ancient stories to suit the newer generation’s outlook and Islam shifts its own today. Science’s Vatican is called the “Scientific Community”, populated with priests, clerics, and monks in lab coats funded by socialist corporations when they preach and evangelize properly.
Religion stories always change. How do you think we have 1,000’s of different versions with similarities. It’s just preference. People want their preferences so they can be comfortable. Some people aren’t comfortable with reality or how it really is which Science does it’s best on exploring and explaining.
Belief is buying into something without having to know. It’s the acceptance of something, regardless of evidence or knowing.
Faith is trust. Belief needs faith, otherwise you will always be second guessing what you believe in.
You can accept something and not have trust in it. You can accept something and have trust in it. All without evidence. But I prefer to stick with the side of evidence, testing, observable facts and indisputable facts. Facts never change, but belief of what is a fact does.
I don’t like your use of ‘fabricate’ presumably in the fake/deceptive sense.
If you read that section in Kant’s CPR you will understand what I meant by those numbers and not think there is an objective research to get the numbers.
Note I said those numbers are relative estimates, i.e. to give a comparative numerical ‘picture’ of the continuum.
If I say your head is full of hair, one can estimate and guess you have 80-95% on the surface area of the top of your head is covered thickly with hairs.
If I say you are almost bald, then you are likely to have hairs on 10% to 40% of the surface on top of your head.
These are rough description [not exact] with numbers and I am sure you can get some reasonable sense of what I meant by the above.