Let’s say someone sends you a video to watch. How long can said video be before you decide it’s too long to watch?
For the purpose of this question, let’s assume you’re trying to decide whether to watch it or not right when you receive it. Let’s also assume that it’s moderately interesting (5/10).
I don’t open any email attachments of any kind unless they are critically important and the sender has spoken to me about them in advance.
Surfing videos, on YouTube for example, I might casually look at a video up to about 10 minutes long. I only look at longer ones if I sought out the specific video.