I agree, another aspect to this is that you are forced to absorb the information at a fixed rate. You can read as fast or as slow as you want, but a video will

I agree, another aspect to this is that you are forced to absorb the information at a fixed rate. You can read as fast or as slow as you want, but a video will throw the information at you at the authors own pace. This either leads to frustration or information overload.