I really didnt like that episode, but mainly because most of the acting was quite awful, the music was very different and not very good and the script dialogue was weird.

As for the explanations, never expected ANYTHING realistic at all, or even 'it-may-be-possible' sci-fi. I just hope theres more to it than what we were shown in this episode, which I am kind of doubting at this point (only 2 eps left!).

It was always going to get kind of gooey at the end, seeing as how Lost is best at the mysteries, whereas the explanations can just feel out of place.

I'll probably still enjoy it however, i'm not gonna lose any sleep over it...