When you learn about demonstrative pronouns, it seems like a really simple concept. This/these for nearby (physically, or with regards to time), that/those for distant things. Anywhere you go, online language sites, or Youtube, this is where the story ends mostly. But it seems to miss out on the trickier usage of demonstrative pronouns. I can't figure this out:
Here's a sentence:
Next week may change the rest of your life. And I don't say that/this lightly.
What would you pick? This, or that?
I picked "this", and it was incorrect, apparently. "That" seems to be correct, as in:
And I don't say that lightly.
What's the rule here, are we still talking demonstrative pronoun, near/distant?
Same as in this:
Check out this/that Youtube video: (LINK). What do you think of this/that?
The near/distant trick, either in time of physical distance, doesn't really help. Suggestions?
Now, this answer offers some guidance:
For a concept or idea introduced a few sentences before, I think the key thing is whether it was introduced by you or the person you're talking to. If you introduced it, you're "holding" the idea - use "this". If they introduced it, they're "holding" it - use "that"."
But really, how does it apply here? Do I hold up my previous sentence? I think so – so this should be correct, am I wrong?
Disclaimer: I'm not a native speaker, but my literary agent is (a seasoned writer). He suggested this was incorrect, and that is correct.
EDIT: taken from your linked answer: "For a concept or idea introduced a few sentences before, I think the key thing is whether it was introduced by you or the person you're talking to. If you introduced it, you're "holding" the idea - use "this". If they introduced it, they're "holding" it - use "that"." -- so I would say, this is the correct word. I just referred to my own sentence.
– James Stone Feb 05 '15 at 09:45