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That takes years of training. i mean, how could you teach a computer to do that? well, here's a classroom full of medical students, and this is a computer. the way you teach each is very different. what you have in front of you here are ct scans of a human lung with cancerous tumours. so i'll be teaching you how to identify them and hopefully save lives. the human brain is brilliant at learning things. it can understand spoken words. it can understand diagrams. just through the teacher's descriptions, these students can have a good guess at finding tumours in these images. they get some right,...

So i'll be teaching you how to identify them and hopefully save lives. the human brain is brilliant at learning things. it can understand spoken words. it can understand diagrams. just through the teacher's descriptions, these students can have a good guess at finding tumours in these images. they get some right, they get some wrong. but with repetition and practice, their brains make more and more connections — which strengthen with success until eventually we really understand the task in front of us, and we can do it well. but computers are dumb. they literally know nothing.

That is short of money, short of nurses, and short of the highly skilled radiologists who can read and interpret images like these. but that's a really difficult job that takes years of training. i mean, how could you teach a computer to do that? well, here's a classroom full of medical students, and this is a computer. the way you teach each is very different. what you have in front of you here are ct scans of a human lung with cancerous tumours. so i'll be teaching you how to identify them and hopefully save lives. the human brain is brilliant at learning things. it can understand spoken wor...

And hopefully save lives. the human brain is brilliant at learning things. it can understand spoken words. it can understand diagrams. just through the teacher's descriptions, these students can have a good guess at finding tumours in these images. they get some right, they get some wrong. but with repetition and practice, their brains make more and more connections — which strengthen with success until eventually we really understand the task in front of us, and we can do it well. but computers are dumb. they literally know nothing. they can't look at a diagram and imagine it in real life. ...

With cancerous tumours. i will be teaching you how to identify them and hopefully save lives. the human brain is brilliant at learning things. it can understand spoken words... it can understand diagrams. just through the teacher's descriptions, these students can have a good guess at finding tumours in these images. they get some right... they get some wrong. with repetition and practice, their brains make more and more connections. which strengthen with success. until eventually, we really understand the task in front of us. and we can do it well. but computers are dumb. they literally know