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Hey there! Welcome to Life Noggin!
大家好！欢迎来到脑洞大开的生命奇想！
When sci-fi writers think of the future, they tend to think of flying cars and human-like robots that do all of our work for us.
科幻作家想象未来时，往往会想到飞行的汽车和类似人类的机器人，可以为我们做所有工作的机器人。
And while we're not quite there yet with either of those, we're getting close to a different innovation, self-driving cars.
虽然这两个我们都还没有实现，但我们已经接近了另一种创新成果，无人驾驶汽车。
In fact, companies like Google and Tesla are already working on these!
事实上，谷歌和特斯拉等公司已经在着手研究这样的无人驾驶汽车了！
It's possible that within the next ten or twenty years, these cars will become common, and our roads might even become safer.
有可能在未来的十到二十年里，这些汽车会变得很普遍，我们的道路也会变得更加安全。
I mean, looking at the numbers, about 1.2 million people die every year from traffic accidents and around 94% of those accidents are caused by human-error.
我的意思是，看看这些数字，每年大约有120万人死于交通事故，其中94%的事故是人为失误造成的。
So, it's possible that well-made self-driving cars could drastically decrease that number.
所以，制作精良的自动驾驶汽车很可能会大大减少这一数字。
But also, these cars could make driving possible again for people who couldn't drive otherwise, like the visually-impaired or elderly.
但是，这些汽车也可以让那些已经不能开车的人，比如视力受损的人或老年人，也能开车。
And on top of all that, think of how much you could get done during your daily commute!
最重要的是，想想在你上下班的路上能做多少事情!
You could watch an entire episode of Game of Thrones or a bunch of episodes of Life Noggin, clip your toenails while watching Life Noggin.
你可以看一整集《权力的游戏》或者好几集《脑洞大开的生命奇想》，看的时候还能剪脚趾甲。
Or, you know, you could just sleep while listening to Life Noggin.
或者，你可以边听《脑洞大开的生命奇想》边睡觉。
But, I'm getting a bit ahead of myself.
不过，我有点太快了。
First, let's figure out how these cars even work.
首先让我们来看看这些汽车是如何工作的。
This is probably obvious, but the cars first need a GPS system to get a rough idea of where they are and where they need to go.
显然，汽车首先需要一个GPS系统来大致了解它们的位置和目的地。
They also have a bunch of sensors to constantly scan the area around the them, looking for any hazards, whether that's another car, a bicycle, or even a huge jacked-up bird!
他们也有一堆感应器，可以不断地扫描周围的区域，观察危险，可能是另一辆车，一辆自行车，甚至是一只巨大的大鸟!
Yeah, that is a mutant.
是的，那是个变种鸟。
For Google's self-driving cars, these sensors include a camera to see, and radar and lasers to map out the area.
而谷歌的自动驾驶汽车上，这些传感器包括一个可以看到周围的摄像头，以及用于覆盖该区域的雷达和激光。
And these are constantly monitoring 360 degrees around the car, which is much better than what a distracted driver could do.
这些监控都是360度覆盖汽车周围，这比分心的司机要好得多。
But arguably the most important and challenging facet of self-driving cars is the software that makes them run.
但可以说，无人驾驶汽车最重要和最具挑战性的一个方面就是运行软件。
This has to take in all the data from the sensors and GPS, and even things like traffic and weather conditions, and make decisions based on that.
这需要从传感器和全球定位系统中获取所有数据，还有交通和天气状况，并据此做出决定。
It determines how to steer, stop, and go, and everything else involved in getting you from Point A to Point B.
它要决定如何调整方向、停止和前进，以及其他从A点到达B点的相关事项。
But of course, this technology isn't perfect and inevitably, these cars will be put in a situation where a crash is unavoidable.
但当然，这种技术并不完美，这些汽车也将难免卷进不可避免的事故中。
And in some cases, the car will have to choose between two evils, like crashing into pedestrians or putting the car's passenger at risk.
在某些情况下，汽车将不得不在两种坏事之间做出选择，比如撞到行人还是让车上的乘客处于危险之中。
In that case, what should it do?
在这种情况下，它应该怎么做？
In a study, researchers found that most people would rather the car sacrifice the passengers for the common good.
在一项研究中，研究人员发现，大多数人宁愿汽车牺牲乘客，保全公共利益。
That said, the same people would rather ride in a car that protected its passengers instead.
然而，还是这些人，却想要乘坐保护乘客的汽车。
So, there's a bit of a issue here because what these people want self-driving cars to be like isn't what they would want themselves.
所以，这就有一个问题，这些人所希望的自动驾驶汽车的样子，跟他们对自己的期待并不相符。
What would you want in that case? A lot of companies want self-driving cars to be road-ready by 2020. Will you be getting in one when they come out?
你希望是哪种情况？很多公司希望到2020年自动驾驶汽车能上路。到时候你会上车吗？
Let me know in the comment section below. If you want to learn about another interesting bit of technology, check out our video on WiFi.
请在评论部分告诉我。如果你想了解另一项有趣的技术，看看我们这期关于WiFi的视频。
Let's start off with the basics everything can be eventually boiled down to binary numbers, zeros and ones, my voice, this embarrassing picture of me as a teenager, everything.
我们从最基本的开始，一切都可以归结为二进制数字，0和1，我的声音，我少年时这张囧照，什么都可以。
After all, a computer CPU only recognizes two states on and off. Now the main thing that sets Wi-Fi apart from the ethernet is the way it transmits data.
毕竟，计算机中央处理器只能识别和关闭两个状态。现在，WiFi与以太网的主要区别就是传输数据的方式。
There's a link in the description if you're on mobile. As always, I'm Blocko. This has been Life Noggin. Don't forget to keep on thinking.
如果你在手机上的话，说明里面有一个链接。我是宝高，这里是脑洞大开的生命奇想。思考不要停。
