No, we don't. We never even consider that scenario at all. At no point in the process do we pick another random series and go "hey maybe the rock in this world is as strong as the iron in this one"
We are told they are normal humans, they act like normal humans, and literally nothing is said that they aren't.
This is not an argument. These are works of fiction and unless there is evidence presented otherwise we take what they state at their word.
This is not what an assumption is. And assumption is used to fill in a logical gap based on existing evidence. You don't have any evidence for this theory. There is literally nothing in either verse that suggests the laws of physics are deliberately arranged behind the scenes so that a less impressive verse is actually exerting orders of magnitude more force than it appears.
If a series states they are baseline human and never directly contradicts it, they are baseline human. It's fiction, the only source of information is the series itself. This is not an existing world the author is giving us a glance into, it's words on a page and pictures in a book. Unless contradicted by the series itself, it is objective fact as far as that settings reality goes.
We literally see a bunch of normal ass human soldiers try to fight adventurers. The Adventurers have to deliberately moderate their attacks to not paste them.
And again both series state baseline humans are just that, so unless contradicted elsewhere that is in fact 100% confirmation. Because this is fiction and it works how the author says it does.
Again, this is not what "assumption" means. There is literally no logic behind your statements.
Are you fucking kidding me right now
All that BS you just shat out about assumptions and how we can't believe that humans are actually humans when the writer says they are
and now you suggest that two materials called by different names
With different properties and abilities
MUST be the same
because they sound similar
This is actually, literally, unitonically retarded.
As in this statement, when attached to the rest of your post, is literally a sign of retardation in the medical sense
Get off the internet, you're done for the day

ha