Question:
Based on the premise "so yeah it really is surprising that people haven't noticed it before", can we conclude that "apparently, I was the only one not to notice it"?
****
Answer:
no

Question:
Based on the premise "have you ever been there", can we conclude that "I know you've never been there."?
****
Answer:
no

Question:
Based on the premise "On a separate guided tour, you can visit the Royal Opera of Louis XV, and the king's private apartments.", can we conclude that "You can see the king's private apartments on your own, at no charge."?
****
Answer:
no