Arguments against Soul

[FlatAssembler]

I was under complete sedation for nine hours once, when I opened my eyes it felt like only a moment had passed.

That's precisely my point.
I think most people, including the apologetics, imagine soul as if it were, to use computer language, the BIOS of the brain, except that it never runs out of power. That idea sounds fine at first, but there are actually many problems with it. First of all, how do you define "person"? If it's psychological continuity, and I think almost everybody these days would agree on that definition, then that soul isn't actually you.
And there is another problem with that, namely, if there were souls which behaved like a BIOS of the brain, we would expect to be able to tell how long we have been unconscious once we wake up, just like a computer can tell how long it's been shut down (assuming BIOS is working, and it's hard to imagine why a soul that can survive physical death would temporarily stop working). And obviously, we aren't.

---

It would be slightly less absurd to suggest that dolphins have a soul than that humans have a soul, don't you think? To dolphins, it can't happen that they are unconscious for a long period of time and then wake up: if a dolphin falls unconscious, it drowns. Yet, such things happen to almost every human at least once in their lifetime.