Two completely different stories/evolutionary_paths but the final result is coincidentally ending-up FAIRLY similar, that's all you need to know. CBF'd outlining it all in detail*, if you're truly that interested in forming a complete picture, there's plenty of old/current threads for you to dig up. And it's all waaaay beyond the scope of this thread anyway.... *it's been done a gazillion times before Not happening, it's all been discussed in detail countless times, not in this thread.