Don’t know about diagnosing but a safe red flag for a relationship that is not good for you and has factors that often occur with narcissists is when you think about their feelings way more than you objectively should while neglecting your own. Especially if you are not in love or something like with your boss.

Why are there 25 comments on that one but I can not read them?

This covers much of it. Also inderect sunlight matters too. So any percentage non sky (groud/horizon) the panel “sees” wil have less indirect sunlight than the (blue or even cloudy) sky going towards the panel.

Thank you for this lesson!