> Bias is only necessary for editorialization or conjecture regarding another's intent.
I'm gonna assume you're taking a hard science approach to bias, then:
It is statistically non-plausible to observe all facts in the universe, so the facts you can observe suffer from the selection bias fact sampling error.
Bias is required in any useful model of the universe to explain the difference between the expected and the observed.
Even assuming a non-plausible, accurate model with no biases whatsoever, such model is very likely to require high variance to encompass all fact observations and models with too much variance are useless.
However, you don't need "many angles". Those are too few. You need all the angles.
Reaching conclusions without observing all the interactions, from all angles, in the entirety of the universe existence is, by definition, biased, so, almost all conclusions reached before the universe ends are biased.
I'm gonna assume you're taking a hard science approach to bias, then:
It is statistically non-plausible to observe all facts in the universe, so the facts you can observe suffer from the selection bias fact sampling error.
Bias is required in any useful model of the universe to explain the difference between the expected and the observed.
Even assuming a non-plausible, accurate model with no biases whatsoever, such model is very likely to require high variance to encompass all fact observations and models with too much variance are useless.