I highly disagree. After many years of being very involved with the group I got my credentials from to be a Minister, I have seen with my own eyes things that cannot be explained by scentific therories. Growing up I lived in a home that clearly had poltergists in it.
Until one experiances such phenomena one won't understand.
What I find interesting, is that our former roomate who just committed suicide on Jan. 17, is that I actually expect him to hang around here, yet nothing has happened where I might 'feel' or see something that would back that up. So why are some ghosts around and others not?
So it also brings the question to mind, that while it seems many ghosts tend to hang around the last place they liked or unliked, there are others that can actually follow you. I know from my own experiance about this.
I might also add regarding the orb in the picture, it is far to perfectly round to be anything else. I've had dust particals show up on pictures I've taken and I can tell the difference.
(sorry about the spelling- I do wish we had spell check here)