Question: unless the people have proof that they're leaving that they're not going to stay
If they have proof of them leaving they won't stay.

Answer: yes

Question: All will be revealed in time.
Some things will always remain a secret.

Answer: no

Question: Back in the 1950s, twin colossi sat astride the Hudson, figuratively glowering at each Betty Friedan in Grandview on the West Bank, writing The Feminine Mystique , and John Cheever in Scarborough on the East Bank, writing the Wapshot books and the short stories.
Two famous authors lived on the same side of the Hudson river.

Answer:
no