Stanford Computer Scientist Answers Coding Questions From Twitter | Tech Support | WIRED
Chris Piech, professor of computer science at Stanford University, answers the internet's burning questions about coding. Do you need to know math to be good at coding? How many computer languages are there? Are programming and coding the same thing? How do you code A.I.? What is the meaning of the "404" error? Chris answers all these questions and much more!
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How do you guys find these people, they’re always the perfect teacher
I always wondered that too
Wired do doubt has a thorough vetting process that interviews a lot of candidates for these videos. The series is popular enough that I imagine their journalists get solicited by professionals who think they are a good fit too.
tbf, he IS a teacher haha.
@@hoofhearted4 you know very well not all teachers are like this guy
@@andreicmello but that's not at all what I said or implied lol
As a software engineer, I always find it difficult to answer such basic questions to people that are not in the field. This guy answers the questions so perfectly.
I'm seriously considering sending this to my parents (who couldn't care less about coding) because he explains computer concepts so well!
Well, not everyone is meant to be a teacher, and some people are just born for it.
@@kynn23 did u tell em about the money
@@Kathan_ Money?
i just started learning coding and this guy managed to teach me more than hour long videos i've watched
I would love to be in a class taught by him.
@@joost00719 is it supposed to be a joke? Then ha-ha
Yes please
I would probably go to Stanford just for this guy
literally said he has a free course go follow it!
@@Dhruvjindal747 well u cant get in tho
You can tell he loves what he is talking about an loves teaching coding
It's his job tbf
@Jay So plenty of people don't like their jobs
@@InfaziationleBron James is the king
I was a student and TA for Chris at Stanford. He taught a stats class for computer scientists and made it a lot of fun despite the difficult material. He cares deeply about his students. One of my favorite professors!
Do you still have his number? I pay good.
i was also a student and TA for Chris at Stanford
@@westernpigeon Does he smell good?
What is happening in this thread.
@@kindlin obviously somebody wants the professors number.
If all schools had teachers like the experts Wired finds, things would be much better
Well, if students were as enthusiastic about learning same way teachers are about their subject matter, things would be much greater
@@Belioyt students arent enthusiastic most of the time because they aren't interested in the subject they're being taught. what a shocker - jimmy doesn't care about math but he loves programming, but he has to spend just as much time in a class for math as he does programming
Pay for Stanford degrees and you'll get em.
Most do, at least that was my experience for CS at my college.
No.
I could see why he would be a great teacher. His excitement when reading questions and enthusiasm in answering them shows his personality.
“I love this question!” *proceeds to enthusiastically answer question* this guy is such a great teacher hes honestly got me thinking about some self studying on coding. He makes it seem so wonderful
Did you actually do it though? No? Thought so.
@@B3Band you get paid nothing to be a dickhead
I do it using an app and Khan academy. I don't know nor think it's useful (I don't think bc I don't know) but it's really fun. The app I'm using is MIMO. Maybe you can check it out (or other sources) to see if it's something you'll like.
@@B3Band??
@@B3Bandstfu hater
i love how his teaches. his way of explaining, gestures and all, i get why hes a lecturer
because he's a fed bro
Lecturers are notoriously bad at teaching. They're always researchers first and foremost.
@@itsnottimetostop4462 Researching how to manipulate our minds
... how he* teaches ...
@@einundsiebenziger5488 oh yeah thank you for the correction 😂
What a fantastic teacher! I'm watching this whilst coding myself and I gotta say, It's crazy how upbeat and happy this guy is.
I was thinking the same thing, I bet he's great to do a lab with
I think all great teachers have that innate enthusiasm to inspire. Great to see that here.
I'm learning python right now and I wish I had access to a mentor this upbeat and enthusiastic. Its quite inspiring, really.
@@joeyr7294 a lab? He’s a computer scientist
@@kunaldahiya310 like a AI Learning Lab. 😂 it's kind of like a class 2 to 4 hours long. Students/teachers participate in them to brush up on subjects they already know or on new concepts to the subject. Students I imagine participate to see if they might want to pursue the subject later on. Glad to see you noticed he is a, "computer scientist."👌👍🍻
I couldn't care less about coding, but I loved hearing this guy!
I bet this guy can make you fall in love with coding
@@nileshghadge5016 I think he could
Same
That's one of the qualities of a great teacher to be honest!
This guy is so positive I actually got a little misty-eyed. Even when he's talking about stuff other than coding, like the other aspects of web design, he's just so encouraging.
lol wtf
I'm taking his class right now, and he is EXACTLY like this in class. Amazing professor, one of the best!
Hi Allen
how lucky you are!
funny seeing you here
Link please?
I like him so much I want to take his class just to have him as a teacher
Meanwhile 6 years ago my first python instructor at my college was like "how do you guys not know python" scolded us for 6 months and then the same thing happened in our Java courses where they had too many high expectations. We need more humans like this within the world and education sector that are just not 60+ year olds that expect you to know everything they know.
Yeah agree, im just like We're here to learn
came here to say this exact same thing except for the six years part bc i just graduated. wish my professors were at least a bit like this guy
Considering the cost and competition to attend Stanford, there’s a premium for these types of instructors.
Most professors are at universities for their research. Teaching is a chore for many of them. Any time you have a professor who doesn't seem to care or expects way too much, it's typically someone trying to meet their teaching quota.
The best schools have the best teachers.
I dunno why, but everytime I see someone teaching what they love with so much enthusiasm I just shed a few drops of tear.
😆
Me too!!! Same just seeing them doing it, not teaching it.
this guy is the most optimistic Computer scietist i have ever seen. and i love his attitude. hope he does more videos like this.
I absolutely love this professor's energy. I would NEVER miss a class of his.
The first '4' in 404 (and all 4xx errors) means the problem happened on the requesting (frontend) side, whereas a 5xx error means the problem happened on the backend.
Amazing! Thank you!
4 Four, Frontend 5 is and S, Server That's how I remember
Yes, although you can't necessarily trust the backend to tell you correctly whether it has a problem or not. So anything 4xx means the backend says there's a problem with the the request that was sent to it - but just like any other system or human there's a chance it's wrong. 5xx means not just that the backend is broken, but that the backend is prepared to *admit* to being broken. That really can't be wrong, since claiming to broken when it's not broken would itself be a form of brokennes.
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So many mechanics jokes 🤣🤣🤣
It's interesting to see how quickly perspectives change. I was a programmer for years but never used stack overflow, but when I learned Basic, the internet didn't exist yet. We had to use books an people we knew in person. Cracked me up when he said he learned on C++ ("that's how old I am").
When I started out, it was already the early 2000s. I didn't have to read anything up in books but I am well familiar with going on page 16 of the Google search results. Instead of the StackOverflow being the dominant online forum, we had many different ones. My favorite answer to a problem, I've been looking up for 2 hours? "Is Google broken?"
I learned Fortran using punch cards, then PDP-11 assembler. And I definitely use Stack Overflow. Why bang your head against the wall on some obscure problem when you can often find someone who has already solved it with a 10 second search?
ah, the petty one-upmanship of programmers. never change
@@jojivlogs_4255 😊
For me the Fast inverse square root is one of the coolest and shortest pieces of code that literally changed the world of light and particle physics engine in video games.
Ten plus years ago, I was a TA (technically they called us section leaders) for Stanford's intro CS class and Chris was the head TA. Even back then and even when he was only talking to us TAs, he had this exact same genuine enthusiasm. When I heard he had become a professor, I knew he was perfect for it. And when this video popped up in my feed, I knew he would be perfect for it too! My most memorable experience with him was the time we were set to proctor a final exam and the professor no-showed; we had no exams. Chris was running around campus (literally) looking for him. Turns out the prof thought the exam was on a different day and hadn't even finished writing it. Chris had to explain what was going on to a room full of hundreds of stressed students. I think they ended up making the partial exam optional. It was a stressful morning but he handled it well!
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Can't believe the handsome professor was a nerd 😳
Me too Joe!
OH MY GOSH IT'S CHRIS PIECH! I had dinner with him once in 2016 and he was so lovely to talk to. He's actually the one who introduced me to AI by drawing a neural network diagram on a napkin, before then I didn't know what they were!
i also had dinner with him in 2016
Me too. I also had dinner with him in 2016.
I too, partake in evening dining activities with this gentleman in the two thousandth sixteenth year after the birth of a central figure in the world's largest religion according to historical scholars.
@@VJZ-YT r/increasinglyverbose
I played half life with him in 2016
The casting directors for this series are amazing. They always find the best people for communicating on all of these topics.
i LOVE the enthusiasm that he answers what i think many would consider "dumb questions" with and how he uses those as opportunities to offer much further insight into the topic at hand. it's the mark of a genuinely gifted teacher, would love to take his class one day
I literally still don't understand how the internet works at all, but as usual, WIRED has gotten a charismatic and approachable expert on board and I got sucked in. Love this series!
ITS A SERIES OF TUBES!
What most people think of as "the Internet" is actually just "the web" ... a group of applications & services that use the actual Internet. The true Internet is a network of communication lines between computers, a language they use (called TCP/IP), and some rules for how they communicate. It's all structured a little bit like the telephone network, where all the telephones can call each other and make connections. Once a connection is established, information can pass between the two points. (In fact, some of the first computer networks actually used the telephone lines.) Once a couple of computers have established a connection over the Internet, they can exchange pieces of information, data, back and forth. Your mobile phone is actually a computer, so let's use that as an example. If you run an app on your phone, that app may need to talk to another computer to get some information. Let's say you are using Google Maps. Your mobile phone app will "call up" the Google Maps computer on the other side, using the Internet communication network. Once the connection is made, your app might say "Hey, I need directions to XYZ". What's really happening in the background is that your app took your human request, turned it into ones and zeros, and sent those digits to the computer on the other side of the communication connection, the Google Maps server. That server uses that request to understand how to reply. Then it sends its reply, as ones and zeros, to your mobile app. Your mobile app then turns those ones and zeros into a format that you, the user, can understand. The same thing happens when you use your web browser, play a person-to-person game over the network, send an email, or anything else you do "online". Just remember: Internet = communication network; Web = something useful that communicates _over_ the Internet.
Crash Course has a Computer Science series explaining how internet works in short and animated videos
@@KimberlyGreen If you're going to mention TCP/IP you also godda mention UDP.
@@Zedament Didn't want to add to the confusion so I kept it very basic. No mention of network layers, other kinds of protocols, hardware, etc. The average non-IT civilian isn't going to care at that level.
8:18 for those interested: 1xx = information 2xx = success 3xx = redirected 4xx = client error 5xx = server error
Wait. There are error codes for success? "Error 201: you succeeded too hard. Be humbler."
@@avantesma1 those are not really error codes, just codes. They tell you that everything went well, normally it says "200 OK". The real error codes are 4xx and 5xx
@@tcg1_qc Ah, I see. Thx. =)
@@avantesma1 they are rather response codes
@@avantesma1 They aren't error codes at all. They're status codes
I bet his classes are amazing! He explains things so easily, and is friendly about it too. It not just him reading it out of a book and reciting what it says. Way to go Chris!
I never thought of learning about coding and computer science this easy.Very informational and interesting video.
It's both easy and hard. In college you have to a lot of mathematics classes including calculus and learn the history of computers and learn all about computers and programming at the lowest levels as well as networks and a lot things I can't remember after all these years. Then you'll have to spend a couple more years learning your specific area of study, for me it was data analysis. That's on top of learning the gen ed/soft skill classes. On the other hand there are a ton of free courses and websites and tools to learn everything on your own, many even offer certifications. Many universities like Harvard and MIT put their classes up for anyone to see amd you can always go to your local university and sit in on any class. You can learn to code by just lessons online and it's not too difficult if you dedicate yourself for a year or two but to be good you want to learn everything related. The only thing you can't get for free is the piece of paper showing your degree and that's not actually as important as your skill in this field.
Id argue coding is the easy part, the rest is the hard part
I can see why this guy is a teacher. He knows exactly what to say to convey the most meaning with the fewest words.
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What an amazing guy and teacher! His enthousiasm almost convinced me to become a coder today.
almost? Write one piece of code.....
Lol
You should start! I find it pretty fun, you might too! P.S. correct your error in enthusiasm before the trolls come.
What would it take to push you that last inch?
Pick up Visual Studio Code and some tutorial videos! Try it out with some simple scripts (good one to start with is the Python language).
this guy is such a great teacher, he's got me interested in learning how to code in about 5 mins. He's a professor a standford for a reason
It is amazing to see someone who wants to share his pieces of knowledge like him! Yours enforces make the planet a better place
I cried in front of this man and he was so nice…love u chris
Did he interview you lol😂
Please give us the story 🤣
But why?
Omg why
We are here for the tea 🍵 🙌
I had Professor Piech for a probability class, and he was amazing!
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I love this guy, his whole way of being is really warm. Like a kind hug.
such a brilliant way to inspire others to code. He explained it in such a non-complex way that made me glued to the screen. We need more people who can teach and inspire like this, with all due respect to professors/teachers.
I really dig this guys energy throughout the video. So many educators teach this stuff with such a lack of energy that it ends up transmitting to the rest of the class but coding is fun and I hope everyone watching this takes it up
for the support series of interviews they always seem to find people who aren't just knowledgeable but more so people who are good teachers with great personalities. great communicators(unlike me). they kind of remind me of Bill Nye or Neil deGrasse Tyson they aren't the smartest scientists on The Cutting Edge of research but they are great at communicating it to the Layman
Yikes. This guy got a lot of softball questions and a few hard ones too. And his answers were absolutely idyllic for the audience. It was great.
honestly im thinking of coding purely because it means i can make my own game only thing is that im burnt out and dont have hte motivation to start learning lol
00:00 Intro 00:12 How many coding languages are there? 00:36 Can coding be self-taught? 01:10 Stack Overflow 02:14 Front end vs Back end 03:35 What is the shortest piece of code that changed the world? 04:17 C++ 05:34 Python 07:35 Error 404 08:29 Programming vs Coding 08:54 Raspberry Pi 09:46 Artificial Intelligence 10:48 Algorithms 11:41 GitHub 12:23 Which coding language is the easiest? 12:53 Do you have to be good at math to code? 13:42 History of coding, Computer Science, Artificial Intelligence 15:10 Is coding required for web design? 15:48 Do you need to know how to code in order to hack? 16:26 Why is coding important?
tysm
Thank you
Thank you!
Thank you. Wanted to know what that error 404 means before watching all of it.
I'm in shock that they even dedicated one second to answering "What is a 404?" let alone a whole minute. The Twitter user could have typed that exact question into Google an been done with it.
Never really imagined I woulda enjoyed coding or even listening to someone answer question but boy can I tell you I’m very I terrestre after hearing this man speak. The way he brings explains things make it sound so simple and he even uses examples out in the real world to further help figure what he’s talking about. I’d love to sit in one of his lectures and continue to learn.
I really love passionate guys like him. It almost feels like they are radiating positive energy.
One of the best presenters in this entire series. Phenomenal host and teacher.
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Chris Piech! He's amazing. I was part of the global initiative Code in Place during the pandemic which was in part Standford's CS106A. He and the other professor did some wonderful explaining of complex concepts for beginners. So positive and encouraging!
I'm doing Code in Place right now!
@@TessG9107it was such an amazing and self building experience
Loved CiP!!
Oh wow what a blissfully comfy video! No discussions over which paradigm is better, how data should look like, how variables should be named, which file and folder a piece of code should be placed in, etc. Just an overview of what programming is, and how amazing it is for solving many of our problems. Huge props to professor Piech for his fascinating way of teaching!
Very happy to see Chris here! I loved his classes in Code in Place program. It was always interesting and fun to listen to his teachings. He made me love coding but I guess I wasnt patient enough to make great things with it.
4:19 My guy turned a joke into a genuinely interesting history lesson on coding languages. I love his energy.
In just 17 minutes this guy explained everything I literally couldn't comprehend in school when we had coding lessons, and I was getting straight Ds for it. This is literally enlightening
I'm studying computer science rn. I already understood most of the concepts he explained, but the way he explained it really made me a little more enthusiastic for coding and my career. He is very right when he says coding is also beautiful. Call us nerds or whatever, but you can definitely creat art by taking your ideas and turning them onto something the computer understands, and that's an amazing feeling
you can see how great of a person he is, motivated me to learn more about coding just by his enthusiasm and love while answering the questions
This guy and his passion for programming is absolutely beautiful.
He explained it so easily and excitedly...wish I had a teacher like him in the school then I didn't had to reteach myself programming.
this guys seems like a pleasure to be a student of. hope he continues to inspire for years to come in his life
I really enjoyed the way he explains all of these things. he has a great flow of talking and his excitement for his subject is really infectious
weird to open youtube and see my old prof's face on recommendations. hi chris! you rock! thanks for 106a, still one of my favorite classes ever.
How are you doing now? Where are you working?
@@nands4410 thanks for asking! i'm navigating the complexities of life, as we all are ^^ i'm not in cs, but i use programming to design new media experiences. chris' (and mehran's) intro class was so well taught and organized, and their passion and energy for cs is very hope-inspiring. i know i was definitely inspired and gained confidence through their teaching!
I can vouch for the self taught method. I flunked out of college three times. Heck, I _barely_ graduated high school because I'm bad at math. You don't need to know math to code. We write code so that the computer will do the math for us. I started by teaching myself basic computer repair which led to web design then networking. Eventually, I learned coding and more advanced stuff like database management and server management. I worked in the tech world for 20 years for companies like AOL, Gateway Computers, MSN, AT&T, and ADP. I'm probably giving away my age with those company names. But that's actually another good point. When I started, things like KZhead, Stack Overflow, and Free Code Camp didn't exist or were not at all as good as they are now. If I could do it in the late 90s and early aughts, anyone can do it now. As long as you can prove your knowledge to the person interviewing you, you'll be fine. Once you get the job, though, the most important thing, especially something like coding, is never stop learning. It changes so fast that you will forever be a student of your profession.
You don't need much math to code but if you want a degree in IT you need a lot of math
Thanks for the insights!
Thanks for sharing. I'm starting to think there is hope for me yet, despite my struggles with Python.
As a Data Scientist, I need a lot of math and probability
That's very insightful, thank you, interesting story
This guy has some magic around him. I literally want to code right now just by listerning to his enthusiasm :) Love your channel!
i love when they get these sweet, enthusiastic people! it's really so wholesome
The way he read the questions and reacted tells us how excited and passionate he is about computer science. You guys have found the best teacher.
Chris was my advisor as an undergrad at Stanford. I can confirm he is just as wonderful in real life ❤
I love his energy n enthusiasm. He got the brains n the look
I would go to all his lectures just for having a bit of his enthusiastic mood. Great teacher!
this guy taught the code in place class during covid - amazing guy
This is the kinda guy who genuinely understands computer science, as a developer it’s can often be hard to communicate that what you’re doing is not just a trade, but it’s an art! I often sit back and learn how to use a new tool and as an artist would say “what can I do with this new medium to create something beautiful or thought provoking” I find myself saying the same exact thing.
This was my favorite wired interview by far. Chris is a fantastic teacher.
By far one of the best instructors I've ever had, if not the actual best. Teaching well is a gift, I wish all instructors had it!
The often forgotten part of a web design team is the testers!! I can not tell you how many websites are so poorly designed when it comes to the user interface. Government websites are the worse of the worse, IMO
This also plays a little bit into the “hacking” portion because I think many of the people who want to get into hacking, are people who are interested in finding ways to break programs or make them behave in a way they aren’t supposed to. This kind of skill also translates really well into software testing
Well, there is a bit of a difference between QA and UX, though they often overlap
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Had Chris Piech as my professor Frosh Year and I can confirm he is literally the best teacher ever
I love how many of the comments are "I had this guy as a teacher and he is phenomenal"
Personal comment: In response to "Do you need to be good at math to code?" I think Historically computer scientists needed to be good at math because memory and processing power was so much more limited so developing mathematically efficient algorithms was so much more important back in the day. Today, Computers have so much power, memory, and multiple processors that the majority of programmers don't need to be great at math. Just my personal thoughts on the movie. loved it.
Well it’s not only in efficiency, for example, mathematical vectors are used in graphics, triangulation, and a couple other areas, but I would say if you have a hard time learning those then you’ll have a hard time reaching those levels, but rly anyone can learn mostly anything given time, dedication and perseverance.
to be honest it’s more so related to what domain you’re in. some domains require a lot of math others don’t. if you’re an ML researcher Id expect the person to know some level of math
@@syte_y Took words right out of my mouth
This guy is very pleasant and highly comprehensive. It's impressive to be this detailed in technical discussion without coming across as condescending or giving a jargon overload, and he nails it. Really good guest and video.
What a Piech. He's amazing. Please bring him back!!! This was time well spent.
I love just how passionate he is answering theses questions. Honestly any person you invite on really taking the time to explain things in areas I’ve never thought about 10 out of 10 🙌🙌
I'm amazed at how he answers all the questions in an effortless and fun way; what a great teacher!
Chris sure has gone a long way since our times in ISKL in KL. Cool to see this.
Wow. I'm not even interested in coding, this just came up in my feed and I needed something in the background. Despite that, this was very interesting because of how passionate this guy is about his field. I'm sure his students love him
i love him, he made this difficult concepts seem so easy to understand, i bet it would be great to have him as a teacher
Wow! He is one of the sweetest person I have ever seen on the Internet. You can feel his passions for Coding through the screen.
I would've loved to have him as my teacher when I was going to school for computer science. 💯
Chris is an amazinggg instructor. I truly enjoyed taking his CS109!! He is the best person delivering materials in normal and understandable language. Glad to see him on youtube :)
Wow what a surprise! I was a student at Code in Place, Stanford last year and he was one of the instructors. I love his teaching style and genuine humour. His lectures are fun filled. Good to see him again.
He explained everything so well and you can tell he loves what he teaches, great video!
I was lucky enough to be a part of Code in Place this spring. Chris is one of our two professors and that's why I clicked on this video. I love your passion for Computer Science. Thank you very much. I already miss Karel.
I LOVE his enthusiasm about this. I wish I heard more people explaining things they love like this guy. THANK YOU
Why couldn't all of my teachers be picked by WIRED. I would have enjoyed school so much more.
Probably because teachers are not compensated nearly enough! Plus they have a whole bunch of other responsibilities
I am a teacher. Here is why. Teaching takes energy, and sometimes we have to put that energy into other important parts of the teaching process. Presenting with energy? That’s just one part of the process. What they have here is a guy who was already prepared, and had very good energy and delivery. Sometimes, actually often - teachers can’t do all of this all at once.
If you go to Stanford you can at least have this guy 🤷♂️
Of all these videos I've watched, he seems the most excited about his topic. Not that others seem unexcited, he's just more excited
Nice to see someone so competent who's enthusiastic & skilled @ explaining.
Stack overflow is so great. It’s wonderful to get a different set of eyes on something or to search questions that have likely already been answered as well
I love how a tech guy isn’t using a tablet or something to teach us… he’s using a marker and paper.. someone planned this 😂
Actually most of the coders and engineers I have worked with use A LOT of pen and paper. It often helps organizing ideas, or drawing a diagram or the outline of the architecture of what you're building. Doesn't seem logical for this to be true, but it kinda is xD
Yeah most of my CS classes had either a blackboard or a whiteboard, and the ones that used a projector mostly just did it once in a while
@@victormanjarinsala2253 yeah, nothing beats pen and paper to visualize stuff. other than a drawing tablet, but nobody will buy one just for that
@@radeklew1 my CS classes all use a projector to show code or a presentation, but the teachers pretty much always write stuff on the board when explaining something
Would it be weird if a pilot drove a car?
I love how enthusiastically he explains.
I would love to be in his class. The way he explains these complicated concepts in a simplified manner is an art.
He's such a great teacher but I think what I love is how genuinely happy he seems to be explaining these things. His smile is infectious.
Best 17 mins of life. Only we had such teachers who would take the effort to make things so interesting and simple that any can understand. Found a legend.
Very informative and I just love your sunny disposition and enthusiastic energy when explaining. Cheers.
Chris's passion is on his sleeve in this episode, and it's super infectious! I'd love to see him teach.
One of the best classes I ever took was with him! Got me into CS and my career when I never thought I’d do anything remotely STEM-related
this is so cool! this guy explains it really well, i hope we see some more of him soon!
Seeing his ability to teach concepts so well really shows the value of an education at a top tier school
I could listen to him talk about computer science all day. He seems like a cool teacher
How cool is this guy! Spreading the joy of knowledge to other humans the way he does is really priceless
We need a part 2 of this. Very inspirational. Love the professor.
What an awesome person. Thanks for taking your time for us!
This is the friendliest, nicest professor I have ever seen. Stanford is lucky to have him WOW!!!