Good question Wookietim!
It seems to me that many people look for an answer to the phenomena - in terms of a single answer, this is a non starter as far as i'm concerned. Sure you can do that, and you can cherry pick cases to suit your own preferences, but for me there are many different causes to this phenomena. If you just rely on data you have very little to go on, plus you narrow your cases down to those that exhibit some form of readable data, you're likely then to dismiss those that don't fall into the category as you'll naturally be drawn to look for similar patterns in your quest to find
an answer...(when saying 'you' or 'your' i'm obviously generalising).
Witness reports are notoriously unreliable, yet essential (imo) particular in understanding how people interpret things...which could be key to many of the answers people are looking for here..
So the way I see it is you have different options:
You have an idea of what the cause might be (alien for example) and find cases that you think support your stance (your level of critical thought will probably fall a little here, since we all want to find the answers we'd like to be true deep down).
You go strictly on data and narrow your field of research, but you're not really trying to answer the overall question then, you are trying to answer
a question..
You judge each case individually, accepting that the witness report is only an interpretation, nothing more....and just stick to looking for your own cases, with no preconceived idea as to what the cause might be, and accept you might find a different answer for every sighting/experience you have...that way yo might just be surprised what you dig up..
Edited by The Sky Scanner, 06 February 2012 - 10:33 PM.