Does expertise determine validity?

Expertise doesn't inherently determine the validity of a claim, but it does establish a basis of informed opinion within a specific field. According to Bill James, expertise often bases its validity on credentialism and the acceptance of certain principles without solid verification from succeeding generations. He highlights the problem with relying solely on expertise when the field is not critically appraised or challenged, leading to the perpetuation of misconceptions 1.

Additionally, Sam Harris emphasizes that while expertise is crucial for dealing with specialized knowledge, particularly in critical or emergency situations, it is not infallible. Experts can be wrong, and sometimes, significant advancements in knowledge come from challenging established expert consensus. Harris holds that real expertise is necessary for reliable information, but it should also be open to scrutiny and verification 2.

In summary, while expertise provides necessary insights and is essential in many contexts, it does not guarantee the ultimate validity of a claim. Critical evaluation and continuous questioning are vital, even within realms of expertise.