Steven Frank, offers suggestions for future versions of trees in his thorough review of these carbon based thingamajigs:
If I could make one suggestion for future versions, it would probably be for trees to become "untethered". That is, preserve the top portion without the intervening trunk. I have on a couple of occasions been walking down the street and gotten a branch in the face. This is a painful and, let's be honest, humiliating situation.
