“Ignorance is bliss” manifest itself in different ways in life. And very often ignorance is thought of as bliss when new knowledge does not conform with one’s world view. When for example, we have something on our bodies we do not want to get examined for fear we are suffering from some severe condition or the costs of addressing it. Or when companies resist more thorough internal audits for fear of what it might uncover.
Change often gets blocked because the changes will throw up new knowledge that challenges the prevailing paradigm. You might only discover you’ve been calculating a parameter wrongly when you use a different way to do it (which theoretically is supposed to produce the same result).
Are you learning new things everyday? Do you only learn things that fits your current paradigm? Are you allowing new knowledge to update your paradigm? How do you respond to information or knowledge challenging your world view? Is ignorance bliss?