For me, complaints about video quality stopped after I asked support to *disable* adaptive streaming on my courses. It's a tough decision to make, as you're degrading the experience for most of your students in order to improve it for a few. But I don't think it's acceptable for students to find a course they purchased unwatchable.
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@LawrenceMMiller I understand your point with the TV as an example however the difference between 4K on any LED TV and a Retina screen is absolutely noticeable and pixels visible even from a fair distance. The pixels of 'Retina' however are imperceivable to the naked eye at any point (hence 'Retina'). It's completely crisp. I own the 65" inch LG OLED65W9PLA / LB too, though the difference to Retina is perceivable on any similar TV. Despite being happy with it I was disappointed with the close-up clarity of my OLED tv as an experienced user of Retina - even when viewing the fully fledged 4K demo vids of the mountains and the honey dipper and the like. It's quality TV, but it's not Retina (or comparable alternatives). A 65" Retina would cost a fortune at this time. The good news is, if you haven't seen Retina, Super-Retina or XDR, in 'big', you're in for a treat. It transformed my working life. It's why I invested in an iMac 6 years back and it impresses still to this day and completely outshines even my TV which as you know, as right up there as one of the best - if not the best in its category. Vast resolutions aren't needed for most smaller mobile devices, but the technology is moving thick and fast. Retina has been implemented on computers since 2012.
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