I think it would be fair to say that the entire purpose here is to determine exactly what it is we would need to understand and do to create an effective simulation. Hard to simulate when you're not sure what the relevant parameters are in the first place. (I say "hard" and not "impossible", because simulations can be a relevant part of working out what those parameters are, but speaking generally, that's something that you can do when you're already 90% of the way there, and it doesn't sound like we necessarily are.)