What potential challenges might one face when trying to dispel 'zombie ideas' and how can they be overcome?

The 'zombie scheme' concept, as discussed by Paul Krugman in his book, refers to ideas that should have been debunked a long time ago due to compelling evidence against them, but they continue to persist and influence people's thinking. These ideas, despite being disproven, keep coming back like zombies. Examples of such schemes could be certain tax cut policies or healthcare policies that have been proven ineffective or detrimental, but are still being propagated.

The concept of 'zombie ideas' can be applied to traditional sectors like healthcare or taxation by identifying persistent beliefs or policies that have been proven ineffective or detrimental through research, but continue to be propagated. In healthcare, a 'zombie idea' could be a disproven treatment method that is still being used. In taxation, it could be a policy that is proven to not stimulate economic growth as intended, but is still being implemented. The key is to recognize these 'zombie ideas' and challenge them with evidence-based arguments.