Uh okay but let us not be reductive, because again you are confusing physicality and temporal space with spiritual reality, which is nuanced. A Christian would never say that “the soul [never] exists inside the body” because what do you mean by “inside”? That begs the question. Look up hylomorphism:
https://www.catholicculture.org/culture/library/dictionary/i...
https://en.wikipedia.org/wiki/Hylomorphism
While the soul, in death, can indeed exist apart from the body, even after the destruction of the physical human body, the soul is immortal, and lives on, in anticipation of its reuniting with that body. Whether in Heaven or Hell, the soul and body shall be reunited.
Even if the body is “destroyed” by physical means, that is a subjective judgement by human senses, and that glorified body will be reconstituted by Almighty God for everlasting unity with the soul.
> emergent property of the brain
Unfortunately, even this scientific definition is reductive. It ignores the theology of the Soul as an animating principle of everything that is created. Animals have souls [thus their name derived from “anima”]; rocks and stones have souls; trees have souls rivers have souls: everything that we can detect in this world, and every invisible thing, possesses a soul.
The difference with human souls regards their essence and immortality. But material souls are likewise considered souls in orthodox theology, and this should be considered by scientists.
Even in an “eternal death” in Hell, the body and the soul will be reunited there for eternal torture, body and soul.
and Christianity doesn't have a monopoly on religion or the fungible and unquantifiable soul concept
Also your computer is like a car. Your car works because there's a hamster or three in there and they keep them well-fed. Your computer also has a hamster, or a guinea pig sometimes. And your computer sends http packets over next door by means of carrier pigeons, or sometimes by semaphore.
Also men enjoy action-adventure films. Men enjoy films with lots of shooting. All men enjoy films with loud noises and special effects. Men like rock music with distorted guitars and loud drums. Men like loud soundsin general; that's why men are soldiers because we can blow stuff up and we listen to it.
"The Unicorn is most particular in its affections and has a fondness for beautiful virgins..."
https://medium.com/luminasticity/meditation-on-the-unicorn-d...