Why Driverless Cars Need Philosophers: Alessandro Lanteri at TEDxHultAshridge (Transcript)

Here is the full transcript of Alessandro Lanteri’s TEDx Talk: Why Driverless Cars Need Philosophers at TEDxHultAshridge conference.


Many great speakers start by asking their audience to close their eyes and think about something I can’t do that with you today, because if I ask you to close your eyes and think about philosophy, you’ll fall asleep.

And I know that because most people, when they think about philosophy, you know, have this image of a bearded man pondering about impractical solutions to irrelevant problems, and they do that, obviously, sitting on an armchair. That’s not a very nice thought, just let me tell you that, because I am a philosopher, and most importantly, you are a philosopher too.

Today I’m going to show you how everyone of you is a philosopher, how I’ve been studying Fork philosophy for the past ten years – and not from an armchair, from the lab – and how this philosophy can help us get inside into very interesting problems we’re facing now, like artificial intelligence and driverless cars.

So, first of all, are you willing to participate in a small philosophical task with me? Are you all here? All right, I’m going to ask you a short question. I just want to know how you feel about it.

We’ll start with a problem we call “the trolley problem.” Some of you probably have heard about it before. So the trolley problem, basically: there’s a trolley running at full speed down the track, and it’s going to run into five people and kill them all! Unless someone pulls a switch and diverts it onto a side track where only one person is standing and he’s going to, obviously, be killed, but the five are saved.

Now the question for you is: Which thing do you think is better? To pull the switch or not? So if you think pulling the switch and saving the five is better, just raise your hands. Anyone? Okay, I can see that’s a good majority.

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Not everyone but a good 70%. That’s the kind of observation we see most of the time. So you quite compare to the rest of the people. And the most interesting thing there is: why? Well, saving five, saving one, saving five is absolutely better and what you just did there, I want you to appreciate, is what we call a philosophical theory. You formalize a philosophical, a moral theory of that. A moral theory is any “why” answer to a moral judgement.

So here you told me, “We’ll do this because saving five lives is better than saving one.” And this makes you philosophers! So congratulations! Some of you will also identify this as being a theory very similar to what we call “utilitarianism.” So the idea that you have to do whatever ensures the greatest good for the greatest numbers.

So since we’re all philosophers, let me tell you another thing here. What you have experienced is what some colleagues of mine and myself like to call “experimental philosophy.” So, if the traditional tool of philosophy is that comfortable armchair, the symbol of experimental philosophy is the burning armchair.

We want to set that on fire. We don’t want any of that. And I love this because it gets you out of your comfort zone – now, that quite literally – and forces you to see what’s going on out there. What are the many nuances of philosophy that people think and experience. And what this experimental philosophy has as a starting point is controlled experiment with real people, like what we just did with you.

And that gives us insight into how Fork theory and Fork philosophy work, but also gives us insight into interesting contemporary problems. It won’t be hard for you to imagine, a few years from now, a driverless car driving down the road, about to run into five people, there’s no space to brake. Only way to save them: steer onto the sidewalk where it’s going to kill one person only. Since most of you said that was the right thing to do with the trolley, maybe we could just code the software of this driverless car to do precisely that. Won’t be that difficult, right? But if you think so, why? Is that because most people say so in an experiment of some kind? Now – that was a driverless car.

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