So you might be able to guess what happened when I went to dinner with a colleague who was showing me his Android phone. He loves his new Android phone and wanted to show me all the great ways it was as good as, or better than, my iPhone. I was totally uninterested in hearing about it. I didn’t even want to look at it. Basically, I didn’t want to allow into my brain any information that would conflict with my opinion that anything besides an iPhone was even a possibility. I was showing classical symptoms of cognitive dissonance denial.

https://www.blog.theteamw.com/2010/11/01/100-things-you-should-know-about-people-46-the-more-uncertain-you-are-the-more-you-dig-in-and-defend-your-ideas/