Great I really want my bridges cars and medical instruments developed by someone who consumed video bits explaining how it is done. Just because this approach

Great I really want my bridges cars and medical instruments developed by someone who consumed video bits explaining how it is done. Just because this approach works for CS and a lot of humanities classes this can not be generalized. I have the feeling on here the technology optimism sometimes clouds the view on the reality. Just some examples here: biology, biochemistry, chemistry, physics, medicine... To be any use you have to have more than a couple mooc classes.