You're not looking through the pinhole with your eye or camera, you're looking at the projection on paper. You can look at and take photos of sunlight on a piece of paper, so you can look at a pinhole projection just the same.
Well. I remember now. Feel like I just got yelled at by my middle school teacher.
I felt no condescension explaining it. I just assume it's a foreign concept and elaborate more. And even though I know about this, I never thought to use it during the last eclipse many years ago. I idiotically stared at the sun through a cloud, then later wondered whether I caused eye damage.
Lol, I watched through a welding hood.
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