How do you know this is the case when you must rely on your own incomplete reasoning as to what is or is not likely.
That's exactly why the scientific method exists - we can't trust our own incomplete reasoning.
Which is why knowing what is or isn't is
not based on human reasoning in science, but on the predictive capability of theories. This means observation, empirical evidence and repeatability of results.
For example: the concept of escape velocity was how the possibility of existence of black holes was predicted hundreds of years ago. Using the Sun and the Earth as starting points, it was surmised that if these objects retained their same mass, but were much smaller, they would possess an escape velocity greater than the speed of light.
To be exact, at its current density the Earth would need to be 1.8mm in radius to achieve this.
Schwarzschild radius for further reading.
This was before the concept of special and general relativity were even known about. This is an example of a predictive model allowing us to identify possible aspects of reality, even though it goes against what would be considered common sense.
I doubt your methods for detecting the proper way of coming to a conclusion relying on your own critical thinking.
As above, conclusions are not reliant on any one person's critical thinking. It's why scientists run so many tests and experiments and their work is published in peer reviewed studies.
We should not bias ourselves against others understanding but clearly no one has a monopoly on foundation of knowledge.
I'm not sure who this is directed at, or the point you're trying to make.
Before you said that our reasoning is incomplete, now you say we shouldn't be biased towards others understanding.
This is where you and I obviously fundamentally disagree. I'm bias against everyone's opinions being
wrong, unless they're presented as the logical endpoint of a predictive model, or they can demonstrate the observations that have lead to this conclusion.
At this point, I consider their opinions as
PLAUSIBLE. Not true or correct, only plausible.
I conclude from what I see as a case of indeterminate process has little supporting objective evidence.
300 years ago we had no objective evidence for photosynthesis, star formation or atoms either.
The simple fact is that a lack of evidence is not an argument against...anything really. There's a reason burden of proof exists in more than just the scientific field. The argument you're making, that the lack of proof indicates a higher power, is poorly thought out. To draw a comparison on using a lack of evidence to support a claim:
'I believe Jack is a murderer, because there's no evidence to say that he isn't.'
This type of thinking is why they used to tie women to boulders and throw them into lakes - to discern if they're witches or not.
Thankfully society has realised that citing non-evidence to support claims is stupid, and has intelligently decided that to prosecute someone, you need to find actual evidence.