Sure, let's talk it out together. So I think that #1 may as well be, "pay the best teachers extra to record their lectures and have them for years to come." Universities do this. It's worthwhile. We should probably do that!
But I'm not sure it replaces anything that exists (I'm not sure you argued this!). A core reason we have teachers and not a TV screen is because they can organically read the room and adjust the lesson plan in real time. That feedback loop is constantly ongoing even if you never noticed it.
I don't want to jump too far through the experiment but I think the conclusion is the same: any good idea is really just, "we need to do more." So if the argument is that we can do more with the same resources, I fear it's because we fail to grok what those resources are actually doing today.
This assumes I meant the lecture should be prerecorded, I actually thought more of it being live. It presents other issues as other posters have mentioned, such as catching back up after sidebars, but provides the live feedback that increases engagement,
But I'm not sure it replaces anything that exists (I'm not sure you argued this!). A core reason we have teachers and not a TV screen is because they can organically read the room and adjust the lesson plan in real time. That feedback loop is constantly ongoing even if you never noticed it.
I don't want to jump too far through the experiment but I think the conclusion is the same: any good idea is really just, "we need to do more." So if the argument is that we can do more with the same resources, I fear it's because we fail to grok what those resources are actually doing today.