Experts in a field can also be quick to dismiss new ideas and accounts presented by people not in their field, or without years of experience and a strong reput

Experts in a field can also be quick to dismiss new ideas and accounts presented by people not in their field, or without years of experience and a strong reputation. To me it seems similar to how programmers can be quick to dismiss unlikely-sounding user bug reports, until they can see the bug with their own eyes.