> When someone mentions correlation, they imply a linear relation between the correlated variables and a range of values for which that relation is valid.
Yeah that's what correlation means?
> Only when that model is further validated correlation suggests causation.
No! It suggests causation already. There may not be causation but it definitely suggests it.
For example if I find that eating fast food correlates with BMI then there's a pretty clear suggestion that eating fast food causes increased BMI. It might not be the case! But it's clearly very suggestive.
Yeah that's what correlation means?
> Only when that model is further validated correlation suggests causation.
No! It suggests causation already. There may not be causation but it definitely suggests it.
For example if I find that eating fast food correlates with BMI then there's a pretty clear suggestion that eating fast food causes increased BMI. It might not be the case! But it's clearly very suggestive.