"That's not what I'm saying," Hank replies with a sigh, because he doesn't believe that's true, not for a moment. The island is too unpredictable for that to be the case.

"I'm saying that right now, it's not a possibility, but the future can't be discounted entirely."

Just because physical changes on the island have been temporary before doesn't mean that'll always be the case. Though, Hank hopes he's not affected again, if it happens.