It could be an elaborate shared dream state that something has put us in. Details in dreams are always hazy and often incorrect. The subconscious can hold vast amounts of data... but it may not always be as perfect clear as our conscious minds remember.

[ helen smiles a bit. she supposes she should offer the fact that she is a doctor. ]

Or, we've been transported somewhere else entirely. A plane that has no true similarities to the one that you and I know.