When their salary depends on not understanding it A Quote by Upton Sinclair It is difficult to get people to understand something, when their salary depends on not understanding it. understandingwork
The observer effect In biology, when researchers want to observe animals in their natural habitat, it is paramount that they find a way to do so without disturbing those animals. Otherwise, the behavior they see is unlikely to be natural, because most animals (including humans) change their behavior when they are being observed. Farnam Street fs.blog The Spoken and the Unspoken uxethnography