Sentence 1: And I realized that, had Simon followed Lerner's advice and started writing musicals, we'd have had to get to the theater at 10:30 in the morning to read up on the textual footnotes.

Sentence 2: If Simon followed Lerner's advice and wrote musicals instead of comedies, we'd have to be at the theater at 10:30 in the morning to read about it.
Is this second sentence entailed by the first sentence?
it is not possible to tell