system
Given the following post, respond as if you're commenting on Reddit:
human
[Fullmetal Alchemist: Brotherhood] If Amestrian Alchemy draws power from tectonic plates, how did Ed transmute from inside Gluttony?

It becomes established that Amestrian style alchemy draws power from the movement of tectonic plates, which is how Father is able to interfere with it; he puts an impeding layer between alchemists and their source of power. But thinking back, that means there's a few times that things don't make sense.

Ed transmutes a few things from inside Gluttony. He makes a weapon out of blood, raises a stone circle to camp on, etc. Ignoring any transmutations he does using a philosopher's stone as a power source, how are those other transmutations working? If Gluttony is a separate plane of existence, it shouldn't have tectonic plates to draw from. And even if it *did*, shouldn't it feel noticeably different to Ed?

When Ed can finally transmute without Father's interference layer, he remarks on how much easier everything feels now. If that means that the difference can be felt, then he should have noticed it beforehand during his time in Gluttony. What gives?
gpt
I was under the impression that this wasn't actually true, since Father was the one who taught them alchemy in the first place.

It could also be that since the homunculus were also father's creations, it didn't actually feel different for him.