[Now Shepard is curious about these people who could be considered to have "magical powers". Not that he's buying it.]

That seems more likely. [And yet still doesn't make sense -- not with his current situation.] Except I would have had to have been knocked out and dragged to some machine somewhere near by.

[And considering he was in a literal war-zone before he arrived, that's not very likely.]

What were you doing before you were brought here?