It’s possible to implicitly filter your population, like in the hospital example given on the wiki page. Any situation where you make assumptions about the pop

It’s possible to implicitly filter your population, like in the hospital example given on the wiki page. Any situation where you make assumptions about the population could cause Berkson’s paradox. The Ellenberg example on the wiki page is a classic situation. Less attractive people are filtered out of the dating pool due to standards. This is reasonable, but it creates Berkson’s paradox. It’s often hard to realize this is happening.