Materials of the things it destroys matter.
Destroying something with the durability of steel vs destroying something 10x the durability of steel are different.
You are assuming the baseline are pretty much the same, from the visual effect.
No I'm saying Riveria is city level because she used a fire spell that nuked an entire floor the size of a city.
People of her level of power can destroy Adamantite.
ergo, Adamantite can be destroyed by city level power
Adamant in Fate can only be destroyed by planet level attacks or higher.
ergo, Adamant is planet level and Adamantite is city level
If the buildings in Danmachi is 10x stronger than the buildings in fate, even if visually a character in both sides are destroying buildings, it doesn't mean they have the same minimum power being displayed.
Why the hell would this be a thing. Both series have baseline humans who interact with wood and stone like its wood and stone and thus we can assume those materials are similar to real world counterparts
Adamant and Adamantite do not have a real world counterpart and have completely different properties. There is no reason to assume they are similar in any way.
You have the assume the buildings have roughly the same durability to know they have the same minimum power.
Normal non-magical materials are demonstrated in both series to be indistinguishable from irl materials
Nuking the floor of a dungeon, the dungeon could've been 100x stronger than normal things in Fate, you don't know that.
Nothing indicates this, it is never suggested in any way, and there is no basis for believing it would be true.
This is roughly equivalent to assuming there is unmentioned background radiation in Danmachi that means they're all secretly nuclear mutants.
In the end it is assumption that the dungeon is not so far above things in fate. You have to assume that things in Danmachi are not by default stronger than any other series even at the baseline.
No, we use demonstrated feats of power involving comparable irl materials like wood and stone to establish a baseline. And then extrapolate from there the amount of power needed to damage to made up ones
This is not a difficult concept.
This may sounds like I am hyping Danmachi and downplaying Fate, but no. I am saying there is no actual known comparison. The other side could've argue "human from one verse may be stronger by default to human of another verse" for example, in the end we assume they have similar power, the human without Falna in Danmachi and regular human in other series.
It's all assumption.
This is how it goes.
No, we say they're equivalent to irl humans because they demonstrate that they are. There are plenty of series where "human" can easily mean a hypersonic town buster. Danmachi and Fate dont do that, baseline humans are shown to be equivalent to irl humans without supernatural gifts.
1: Is Adamantite in Danmachi the same or Different? Assuming this is the same: It raise up a lot of strength in Danmachi, because it means everything else is harder and stronger in Danmachi,
2: Is Adamantite in Danmachi the same or Different? Assume they are different: That means Danmachi is not miles stronger than any other series.
Simple as that.
Adamantite doesn't exist in Fate. There is a material called Adamant that is used by Greeks to create Divine Constructs, but it both looks and acts completely different from Adamantite in Danmachi.
These series are completely unrelated. There is no basis in any form to assume two differently named fictional metals would share durability or properties.
But eh, the discussion is kinda unnecessary I too want to adopt no.2 I just don't want the other side to complain we are dismissing them.
No one is doing this.
Not even VSB would make this level of jump.
Again the two metals do not even share an actual name.
