Oh good, lets bring the existence/non-existence debate here. As if it doesn't happen on nearly every other thread already. The debate even had/has it its own thread but that is STILL not good enough. And yet the non-existence comments, while having no impact, continue nonetheless. dmaker,, instead of harping on the same thing all the time, how about coming up with some suggestions for what this thread is REALLY about instead of doing nothing but pumping everyone else for information. Saying they don't exist doesn't really excuse not bring a more positive dialogue to this topic. Opening doors to scientists is what this is about. You say they do not exist? Then I suggest start your own thread about that. Thanks