Hahahah... sorry Jostie... I thought you thought the FTL spinning was a joke when that is very real. The grandpa bit, yeah that was a bit of a laugh.

But again, to slow it down or to collide are both forms of interactions (read: measurements). Again, can't be done. There are really a lot of examples of physical phenomena that travel FTL but they all share that same characteristic: they can't be measured or interacted with directly.