I really don’t know the probability of a person saying hello to a stranger who said hello to them. It depends on too many factors, like the look & vibe of the stranger, the history of the person being said hello to, etc.
Given a time constraint, I’d agree that I’d be more likely to predict that the girl would reply hello than to predict Deep Blue’s next move, but if there were not a time constraint, I think Deep Blue’s moves would be almost 100% predictable. The reason being that all that Deep Blue does is calculate, it doesn’t consult its feelings before deciding what to do like a human might. It calculates 200 million positions per second to determine what the end result of any sequence of chess moves will be. If you gave a human enough time, I don’t see why they couldn’t perform the same calculation & come to the same conclusion that Deep Blue would.
Edit:
Reading more about Deep Blue, it sounds like it is not as straightforward as just calculating. There is some wiggle room in there based on the order in which its nodes talk to one another. It won’t always play the same move given the same board positioning. Really fascinating! Thanks for engaging politely, it motivated me to investigate this more & I’m glad I did.
If dogs & cats were raised specifically to be eaten & not involved socially in our lives as if they were members of the family, I don’t think I’d care about them any more than I care about chickens or cows.
This article seems to assume that I oppose all suffering everywhere, which I’m not sure is true. Getting caught stealing causes suffering to the thief and I don’t think there’s anything wrong with that. I care about chickens & cows significantly less than I care about thieves because thieves are at least human.