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by thisiszilff 1713 days ago
What really clicked confidence intervals for me is the explanation that the '90%' in a 90% confidence interval indicates that 90% of the 90% confidence intervals will contain their true parameter.

There is no reason to restrict this to repeating the same experiment many times. The confidence interval above applies to any & all constructed confidence intervals, even those estimating completely unrelated parameters.

Relevant xkcd: https://xkcd.com/882/