@Vorpal They can be real. Absolutely they can be. Just because we currently do not have the technology or the science to /prove/ that they are real doesn't mean they do not exist.
Every living human has an energy field, this is known, it's been hard proven with science and technology both. Since energy cannot truly be destroyed, that energy has to go /somewhere/ and we have no idea where that energy goes yet.
Just like until recently we didn't know that our RNA keeps turning different gene's on after we die to do... we have no idea what.
Maybe one day we'll discover a piece of tech that allows us to measure this energy, track it as it leaves the body, figure out what's going on there. Right now we don't have it, but that doesn't mean we just say: It cannot exist, and stop looking.
There's a quote something along the lines of: I did not ever once fail in creating a lightbulb, I succeeded in learning how /not/ to make one.
So yes, just because we cannot find the evidence now, does not mean the evidence does not exist. Just like we didn't really know about microbes until we saw them, or the planets, or dna, etc.
I am not going to get involved in the whole @wanderer thing because honestly... anyone can skeptic, anyone can true believer, anyone can be anything when it comes to our feelings on various subjects.
There's enough browbeating on both sides of that and I doubt my adding to it would help anything.