Whenever a scientist says something like, don't worry our new experiment could never get out of the lab, or don't worry the miniature black hole we are going to generate couldn't possibly swallow up the entire planet, I tend to get a little worried. The problem is that just about every time a scientist has said something is patently absurd, totally impossible or could never ever happen, it usually turns out that in fact it isn't as impossible as they thought. Now here's a new article about scientists creating new artificial lifeforms, based on new genetic building blocks -- and once again there's one of those statements. I'm guessing that this means that in about 10 years some synthetic life form is going to be found to have done the impossible and escaped from the lab -- perhaps into our food supply, or maybe into our environment. Don't get me wrong -- I'm in favor of this kind of research into new frontiers. I just don't think anyone can guarantee it won't escape from the lab.