If the UI of tree is just like in that http://causehub.io/words/introducing-whatleadsto http://causehub.io/words/introducing-whatleadsto , I feel it little bit

If the UI of tree is just like in that http://causehub.io/words/introducing-whatleadsto http://causehub.io/words/introducing-whatleadsto , I feel it little bit cluttered..) Otherwise its nice idea.