Look, I don’t know exactly. I don’t think it’s an easy problem.
But I think the first stages would try to help the aliens understand how we communicate with each other. If people are waving their limbs around and breathing and poking at devices, and making all sorts of noises, it may be unclear which of those actions is meant to be communication. So the first thing is to have very clear correlations and patterns that are easy to recognise. Bring in the white-board to write words is a decent idea; but writing the word ‘human’ and then just standing there doing nothing with no follow-up is pretty much useless. There needs to be a couple of different words shown with very concrete context. ‘Human’ is not terrible, but it isn’t a great choice because you can’t really draw attention to what a human is when there is literally always a human there while you are trying to communicate. So it might be a decent word if the aliens already have the concept of words - but as a starting point… not really. Better to just say nouns for concrete things and point while doing it; with repetition and clear patterns. Writing just a list of counting numbers wouldn’t be a bad idea either. If you write all the numbers up to 100 or so I think there would be a clear pattern, so that at least the aliens would know that you are trying to communicate by writing stuff.
Regarding my criticism of the movie, it’s not so much that the whiteboard idea is bad, or that their attempts were bad; but rather that these are supposedly the attempts of experts - after other experts have tried and failed; and then the meetings with the project coordinators have weird discussions like “this method will take too long.” - as if they think you can somehow side-step the need to establish a common language. And the description of the plan from the scientist talk about teaching the different meanings of the word ‘you’, and some grammar rules - as if that’s somehow a core priority. I just think it’s a really shallow level of discussion. Their strategy is super basic (but not unreasonable), and the criticism of it from the other characters is somehow even more shallow. They were even questioning why the scientist wanted to bring in the whiteboard. Like, isn’t that extremely obviously? Do you really need to have a discussion about that? I really just felt like it was not a convincing set of smart people talking about the problem.
When I said anyone off the street could do a better job, I guess what I had it mind is that people would typically just point to things and say what they pointing to. They could bring in props and talk about the props; and perhaps try to give something to the aliens to interact with - if possible. Just basic ideas like that would be a decent start. I reckon that would be better than just holding up a whiteboard with a single word on it then just standing around. Like, how are the aliens meant to even know that it is a word at all - let alone what it might mean?
