> You are the person focusing on complaining specifically. I stated that the Nordics are far from being the happiest people in the world, and that is not by counting how much people complain.

Explain to us in what way you have determined that you know better than people themselves how happy they are, then, please.

> When somebody successfully convinces themselves to be happy, they don't continue their lives showing all the behaviour and attitudes of an unhappy person. You can also outwardly tell that they are happy.

Given what you've written I have no reason to believe that you are capable of telling whether people are happy or not at all, as I simply don't believe you will pick out genuine markers of unhappiness from culturally or personality dependent traits that are not.

What do you benefit from resorting to personal attacks? That only limits your own reasoning.

Most times it is not very difficult to tell if a person is unhappy when you interact with them. Especially when they don't try to hide it. When your dog or cat is unhappy, you know it pretty easily. People are usually not much different.