If you ever catch yourself saying "this customer is an idiot", you're probably an idiot for not understanding the customer.
You don't have to agree with them, but understanding comes from the ability to recreate their worldview in your mind and see things through their eyes.
@mishari Sturgeon's Law may be useful here.
This Mastodon instance is for people interested in technology. Discussions aren't limited to technology, because tech folks shouldn't be limited to technology either!