Could you break down that intuition? Why?
If you think that because it's short, I STRONGLY disagree--value added is not proportional to length.
If you think that because it's an exercise, I disagree, although that's a stronger case. We happen to be doing original research in exercise form, and evidence shows exercises work better than academic articles.
If you think that for some other reason, or something like the above but not quite, I'd love to hear it!
thanks, this is exactly the case. a better objection is, it's not strictly true because things can be some complex net of the above cases, and it doesn't always break down into one of the four, but that doesn't fit in "15" words, and it's less important
edit: also it's possible in rare cases for things to be uncorrelated but causally connected
Judea Pearl, Causality:
If two things are correlated, there is causation. Either A causes B, B causes A, they have common cause, or they have a common effect you're conditioning on.
Edit: If two variables are correlated, there is causation. Either A causes B, B causes A, they have common cause, or they have a common effect you're conditioning on.
"15 words" is a secretly a verb rather than a noun. I definitely think discussion and clarification is good, although in this particular thread I'm sad to some people engaging solely in that and missing an opportunity to try out the exercise instead.