that seems to be a different "day of the Lord."
Mark 13 et al sure seem to indicate preterism; the chapter could be titled "What will happen in 70 AD," it seems to me. Don't we have historical evidence for...everything in it? Sans everyone seeing the Lord in the clouds, at least; which evidence just might not have survived, or been occluded. Not saying that makes me a preterist; but i certainly wouldn't be scoffing at them.
What about that "impact" thing, Sean? I have a feeling that describing this impact might clarify some things here.