when I play the introduction video it says www.youtube.com refused to connect.
Hello @randheerchahar,
Could it be some issue with your connection? Did the issue solve? I just tested it now and it worked OK for me. Anyways, do not worry too much about it, since the video is not important for the course. You can check it here: https://www.youtube.com/watch?v=LAKz5Iy_75Q
Best,
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