I'm not positive but I think I recall once calculating that 1701-D was seen on-screen being blown up something like eleven times, although nearly all of those times ended up being undone. Most of the obliterations were in unseen parts of ``Cause and Effect'', of course.cultcross said:
^ That was my point - we've seen 'fake out' destructions before, Cause and Effect, Timescape,but here they actually followed through on it, no reset button, no way out - the Enterprise is gone.