TL;DR: He was very good at reading human emotions and noticed when people got excited as he approached the correct answer, then stopped.
I choose to believe the horse could math.
I dunno. Being able to read human emotions that well seems more impressive to me 🤷
I bet it does ^/j
I wish I could do either
This is always the explanation… There is a term for it, and I cannot recall at this moment. It is related to the Clever Hans Effect (https://en.wikipedia.org/wiki/Clever_Hans), but there’s another term for it… “Facilitated…” something?
Edit: I think it’s “facilitated communication” https://en.wikipedia.org/wiki/Facilitated_communication
For that he would still need some way of knowing the correct answer
He read body language, it didn’t work if the one asking didn’t know the answer
What if he read their minds instead
Don’t be a neigh-sayer