Even then, we might not be able to come to terms. Look at how the dialogue ends:
RUSSEL: You were right Wittgenstein.
WITTGENSTEIN: I told you that even if a lion could speak, we could never understand it.
RUSSEL: I just figured that language was universal. If I could talk to it, we can find some common ground.
So, in the end, that is our crazy bet. We hope we can talk to Wittgenstein’s lion, and some how find some common ground. I’m hopeful, but it remains to be seen how far this experiment might go.