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A letter to students (EN)

I would like to thank all the students for sticking with me through the 8 weeks of the class, which was quite intense for a summer program.

I've been teaching Web3 and Blockchain at KAIST since 2023, and I change the program every year. This year, I was particularly worried about what to teach. With the recent rapid development of AI, you can learn knowledge anywhere, and even without knowledge, you can achieve the desired result. I'm seeing more and more people around me who don't come from a computer science background, but are building services with vibe coding. They don't know CS 101, algorithms, or programming languages. But they're creating the results they want, and it's an amazing world.

In the AI age, what should I teach undergraduate computer science students? To be honest, I don't really know the answer. I could just go back to teaching Blockchain 101 and teach solidity programming. However, I kept asking myself what the point of that would be, so I came up with Sense of Knowledge. It's not teaching the knowledge itself, it's teaching the sense of how and when to utilize the knowledge. In short, it's teaching how to ask questions. It's directing AI how to do things.

However, teaching the sense of using knowledge is not easy. You can't learn it by learning grammar and looking at examples like learning a programming language. You can only learn it by experiencing it. So in this class, I minimized the lecture part and focused on letting you experience it yourself. I know it's not easy to do an AI x Blockchain case study after just two weeks of a basic class, but it's not impossible because we have AI tools now, and I'm sure many of you have had a lot of help from AI, so writing a report is not hard anymore. The hard part is understanding the content and giving the right instructions to the AI to get to the point. I tried to convey in class what questions you should ask, and I also guided you through the report template, so I hope that was conveyed well.

Knowledge has become cheap, so what you know is not a great competitive advantage. So what is? I think it's execution. There's a lot of great AI tools out there. If you don't know something, you can ask an AI, and it'll give you an answer in no time. Many people don't know anything about painting, but they can create a piece of digital art in less than 10 minutes. We've all created images with AI out of curiosity, but how many of you have ever submitted them to a digital art competition? That's a different question. AI can't just do it for you, you have to do it yourself. It's execution. Thanks to AI, you can come up with a new concept in 10 minutes. But applying to a hackathon or a grant program is a different story. Now that everyone has an AI weapon, it's the people who can use it to create results that will differentiate themselves. To do that, they shouldn't just learn for the sake of learning, they should learn to create results, and that's what I hope the hackathon and grant program will do.

We published the reports and projects in real time on the web, so everyone can see them. To do this, I organized Github, mkdocs, HackMD, etc. to create a real-time publishing service. I could just get the reports and projects in a Google Drive folder. But I made it complicated for a reason. Your deliverables are now your history, you're documenting the journey of this class, you're documenting a line on your resume that you can use in the future. Someone might be inspired by your report or reach out to you. In the future, it's going to be more about the process than the result itself, so keep track of your journey, it's going to be your story, it's going to be your narrative.

This class has given you one more weapon in your arsenal: blockchain. Of course, if you don't know what it is, you can ask an AI. However, it's probably not as easy to understand and experience as many of you have presented and learned in class. The marriage of AI and blockchain is still in its infancy. The two technologies complement each other, so there will definitely be opportunities at the intersection of the two. Don't end your blockchain journey here, but stay interested and learn more.

I'm happy to have connected with many of you through the course. I'm a person who values relationships, so if you have any questions or need advice, please don't hesitate to reach out to me - you can reach me via email. I hope this class has been helpful to you in your academic journey.

μˆ˜κ°•μƒλ“€μ—κ²Œ λ³΄λ‚΄λŠ” νŽΈμ§€

8μ£Όκ°„μ˜ 짧은 κ³Όμ •μ΄μ§€λ§Œ 여름학기 μΉ˜κ³ λŠ” λ‚˜λ¦„ λΉ‘μ„Ό 과정을 λκΉŒμ§€ 잘 따라와 μ£Όμ‹  학생 μ—¬λŸ¬λΆ„κ»˜ κ°μ‚¬λ“œλ¦½λ‹ˆλ‹€.

2023λ…„λΆ€ν„° KAISTμ—μ„œ μ›Ή3와 블둝체인 κ°•μ˜λ₯Ό ν•˜κ³  μžˆλŠ”λ° λ§€λ…„ ν”„λ‘œκ·Έλž¨μ„ λ°”κΎΈκ³  μžˆμŠ΅λ‹ˆλ‹€. μ˜¬ν•΄λŠ” 무엇을 κ°€λ₯΄μ³μ•Ό 할지에 λŒ€ν•΄ 특히 고민이 λ§Žμ•˜μŠ΅λ‹ˆλ‹€. 졜근 AI의 κΈ‰κ²©ν•œ λ°œμ „μœΌλ‘œ μ–΄λ””μ„œλ‚˜ 지식을 배울 수 있고, 심지어 지식이 없더라도 μ›ν•˜λŠ” κ²°κ³Όλ₯Ό 얻을 μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€. λŒ€ν‘œμ μœΌλ‘œ 코딩이 그런 μ˜μ—­μœΌλ‘œ λ“€μ–΄κ°€κ³  있죠. 제 μ£Όλ³€μ—λŠ” μ „μ‚°ν•™ μΆœμ‹ μ΄ μ•„λ‹ˆμ§€λ§Œ λ°”μ΄λΈŒ μ½”λ”©μœΌλ‘œ μ΄λŸ°μ €λŸ° μ„œλΉ„μŠ€λ₯Ό λ§Œλ“œλŠ” μ‚¬λžŒλ“€μ΄ λŠ˜μ–΄λ‚˜κ³  μžˆμŠ΅λ‹ˆλ‹€. 그듀은 CS 101μ΄λ‚˜ μ•Œκ³ λ¦¬μ¦˜, ν”„λ‘œκ·Έλž˜λ° μ–Έμ–΄λŠ” 1도 λͺ¨λ¦…λ‹ˆλ‹€. ν•˜μ§€λ§Œ, μ›ν•˜λŠ” κ²°κ³Όλ₯Ό λ§Œλ“€μ–΄ λ‚΄κ³  있죠. λ†€λΌμš΄ μ„Έμƒμž…λ‹ˆλ‹€.

이런 μ‹œλŒ€μ— κ³Όμ—° μ „μ‚°ν•™κ³Ό ν•™λΆ€μƒλ“€μ—κ²Œ 무엇을 κ°€λ₯΄μ³μ•Ό 될까? μ†”μ§νžˆ 저도 닡을 잘 λͺ¨λ₯΄κ² μŠ΅λ‹ˆλ‹€. κ·Έλƒ₯ μ˜ˆμ „μ²˜λŸΌ 블둝체인 101 κ°•μ˜ν•˜λ©΄μ„œ 솔리디티 ν”„λ‘œκ·Έλž˜λ°μ„ κ°€λ₯΄μΉ  μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€. ν•˜μ§€λ§Œ, 그게 무슨 μ˜λ―Έκ°€ μžˆμ„κΉŒμ— λŒ€ν•΄ λŠμž„μ—†μ΄ λ°˜λ¬Έν•˜κ²Œ λ˜λ”κ΅°μš”. κ·Έλž˜μ„œ 생각해 λ‚Έ 것이 Sense of Knowledge μž…λ‹ˆλ‹€. 지식 자체λ₯Ό κ°€λ₯΄μΉ˜λŠ”κ²Œ μ•„λ‹ˆλΌ, 지식을 μ–Έμ œ μ–΄λ–»κ²Œ ν™œμš©ν•΄μ•Ό ν•˜λŠ”μ§€ 감각을 κ°€λ₯΄μΉ˜λŠ”κ±°μ£ . ν•œλ§ˆλ””λ‘œ μ§ˆλ¬Έν•˜λŠ” 방법을 κ°€λ₯΄μΉ˜λŠ” κ²ƒμž…λ‹ˆλ‹€. AIμ—κ²Œ μ–΄λ–»κ²Œ 일을 μ‹œμΌœμ•Ό ν•˜λŠ”μ§€λ₯Ό κ°€λ₯΄μΉ˜λŠ”κ±°μ£ .

근데, 지식을 ν™œμš©ν•˜λŠ” 감각을 κ°€λ₯΄μΉ˜λŠ” 것은 μ‰¬μš΄κ²Œ μ•„λ‹™λ‹ˆλ‹€. ν”„λ‘œκ·Έλž˜λ° μ–Έμ–΄ κ³΅λΆ€ν•˜λ“―μ΄ 문법 읡히고, 예제 λ³΄λ©΄μ„œ 배울 수 μžˆλŠ”κ²Œ μ•„λ‹™λ‹ˆλ‹€. 직접 λΆ€λ”ͺνžˆλ©΄μ„œ λͺΈμœΌλ‘œ 체득할 수 μžˆλŠ” κ²ƒμž…λ‹ˆλ‹€. κ·Έλž˜μ„œ 이번 μˆ˜μ—…μ—μ„œλŠ” μ œκ°€ κ°•μ˜ν•˜λŠ” 뢀뢄은 μ΅œμ†Œν™”ν•˜κ³  μ—¬λŸ¬ 뢄듀이 직접 κ²½ν—˜ν•΄ 보도둝 ν•˜λŠ”λ° μ΄ˆμ μ„ λ§žμ·„μŠ΅λ‹ˆλ‹€. 기초 μˆ˜μ—… 2주만 λ“£κ³  AI x Blockchain 사둀λ₯Ό μ—°κ΅¬ν•˜λŠ”κ²Œ 쉽지 μ•Šμ•˜μ„ κ²ƒμž…λ‹ˆλ‹€. ν•˜μ§€λ§Œ, 이젠 AI 도ꡬ가 있기 λ•Œλ¬Έμ— λΆˆκ°€λŠ₯ν•œκ±΄ μ•„λ‹™λ‹ˆλ‹€. μ—¬λŸ¬ 뢄도 AI의 도움을 많이 λ°›μ•˜μ„κ²λ‹ˆλ‹€. κ·Έλž˜μ„œ λ³΄κ³ μ„œλ₯Ό μž‘μ„±ν•˜λŠ”κ±΄ 이제 μ–΄λ €μš΄κ²Œ μ•„λ‹™λ‹ˆλ‹€. μ–΄λ €μš΄κ±΄ κ·Έ λ‚΄μš©μ„ μ΄ν•΄ν•˜λŠ” 것이고, 핡심을 μ§šμ–΄λ‚΄κΈ° μœ„ν•΄ AIμ—κ²Œ μ˜¬λ°”λ₯Έ μ§€μ‹œλ₯Ό λ‚΄λ¦¬λŠ” κ²ƒμž…λ‹ˆλ‹€. μ—¬λŸ¬ 뢄이 μ–΄λ–€ μ§ˆλ¬Έμ„ ν•΄μ•Ό ν•˜λŠ”μ§€ μˆ˜μ—…μ‹œκ°„μ— μ „λ‹¬ν•˜λ €κ³  λ…Έλ ₯ν–ˆμŠ΅λ‹ˆλ‹€. λ³΄κ³ μ„œ ν…œν”„λ¦Ώμ„ ν†΅ν•΄μ„œλ„ κ°€μ΄λ“œν–ˆκ΅¬μš”. 그런 뢀뢄이 잘 μ „λ‹¬λ˜μ—ˆμœΌλ©΄ ν•˜λŠ” λ°”λž¨μž…λ‹ˆλ‹€.

지식이 μ €λ ΄ν•΄μ§„ μ‹œλŒ€μ΄κΈ° λ•Œλ¬Έμ— 무엇을 μ•Œκ³  μžˆλ‹€λŠ”κ²Œ λŒ€λ‹¨ν•œ 경쟁λ ₯이 λ˜μ§€ μ•ŠμŠ΅λ‹ˆλ‹€. 그러면 무엇이 경쟁λ ₯이 λ κΉŒμš”? μ €λŠ” μ‹€ν–‰λ ₯이라고 μƒκ°ν•©λ‹ˆλ‹€. 주변에 λŒ€λ‹¨ν•œ AI 도ꡬ가 λ„˜μ³λ‚©λ‹ˆλ‹€. λͺ¨λ₯΄λŠ”κ²Œ 있으면 AIμ—κ²Œ 물으면 금방 닡을 ν•΄ μ£Όκ΅¬μš”. μ—¬λŸ¬ 뢄이 그림에 λŒ€ν•΄ 1도 λͺ°λΌλ„, 10λΆ„ 내에 λ””μ§€ν„Έ μ•„νŠΈ μž‘ν’ˆ ν•˜λ‚˜ λ§Œλ“€μ–΄ λ‚Ό μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€. μ‹ κΈ°ν•΄μ„œ AI둜 이미지 λ§Œλ“€μ–΄ λ³Έ κ²½ν—˜μ€ λˆ„κ΅¬λ‚˜ μžˆμ„κ²λ‹ˆλ‹€. ν•˜μ§€λ§Œ, μ—¬λŸ¬ λΆ„ 쀑에 그걸둜 λ””μ§€ν„Έ μ•„νŠΈ 곡λͺ¨μ „에 λ‚΄ λ³Έ μ‚¬λžŒ μžˆλ‚˜μš”? 그건 λ‹€λ₯Έ λ¬Έμ œμž…λ‹ˆλ‹€. AIκ°€ κ·Έλƒ₯ ν•΄ 쀄 수 μžˆλŠ”κ²Œ μ•„λ‹ˆμ£ . μ‚¬λžŒμ΄ 직접 ν•΄μ•Ό ν•˜λŠ”κ²λ‹ˆλ‹€. 싀행이죠. AI 덕뢄에 μƒˆλ‘œμš΄ 기획 μ•„μ΄λ””μ–΄λŠ” 10뢄이면 μ™„μ„±ν•  수 μžˆμŠ΅λ‹ˆλ‹€. ν•˜μ§€λ§Œ, κ·Έκ±Έ ν•΄μ»€ν†€μ΄λ‚˜ 그랜트 ν”„λ‘œκ·Έλž¨μ— 지원해 λ³΄λŠ”κ±΄ λ‹€λ₯Έ λ¬Έμ œμž…λ‹ˆλ‹€. μ—¬λŸ¬ λΆ„μ—κ²Œ κ°€λ₯΄μΉ˜κ³  μ‹Άμ—ˆλ˜κ±΄ μ‹€ν–‰λ ₯μž…λ‹ˆλ‹€. 이젠 λͺ¨λ“  μ‚¬λžŒμ΄ AI 무기λ₯Ό κ°€μ§€κ³  있기 λ•Œλ¬Έμ— 그걸둜 κ²°κ³Όλ₯Ό λ§Œλ“€μ–΄ λ‚΄λŠ” μ‚¬λžŒμ΄ 차별화될 κ²ƒμž…λ‹ˆλ‹€. 그러기 μœ„ν•΄μ„  배움 자체λ₯Ό λͺ©μ μœΌλ‘œ 두지 말고 λ°°μ›€μ˜ κ²°κ³Όλ₯Ό λ§Œλ“€μ–΄ λ‚΄λŠ”κ±Έ λͺ©ν‘œλ‘œ ν•΄μ•Ό ν•©λ‹ˆλ‹€. 해컀톀과 그랜트 ν”„λ‘œκ·Έλž¨ 지원이 그런 계기가 λ˜μ—ˆμœΌλ©΄ ν•©λ‹ˆλ‹€.

μ—¬λŸ¬ λΆ„μ˜ λ³΄κ³ μ„œλ‚˜ ν”„λ‘œμ νŠΈλ₯Ό μ‹€μ‹œκ°„μœΌλ‘œ 웹에 κ²Œμž¬ν–ˆμŠ΅λ‹ˆλ‹€. κ·Έλž˜μ„œ λˆ„κ΅¬λ‚˜ λ‹€ λ³Ό 수 μžˆμŠ΅λ‹ˆλ‹€. μ΄λ ‡κ²Œ ν•˜κΈ° μœ„ν•΄ Github, mkdocs, HackMD 등을 ꡬ성해 μ‹€μ‹œκ°„ 퍼블리싱 μ„œλΉ„μŠ€λ₯Ό λ§Œλ“ κ±°μ£ . κ·Έλƒ₯ ꡬ글 λ“œλΌμ΄λΈŒ 폴더에 결과물을 받아도 λ©λ‹ˆλ‹€. ν•˜μ§€λ§Œ, μ΄λ ‡κ²Œ λ³΅μž‘ν•˜κ²Œ ν•œλ°λŠ” μ΄μœ κ°€ μžˆμŠ΅λ‹ˆλ‹€. μ—¬λŸ¬ λΆ„μ˜ 결과물은 이제 μ—¬λŸ¬ λΆ„μ˜ 이λ ₯이 λ˜λŠ” κ²ƒμž…λ‹ˆλ‹€. 이 μˆ˜μ—…μ˜ 여정을 기둝으둜 남긴 것이고, λ‚˜μ€‘μ— μ—¬λŸ¬ 뢄이 이λ ₯μ„œμ—λ„ ν•œμ€„ μ“Έ 수 μžˆλŠ” κ²ƒμž…λ‹ˆλ‹€. λˆ„κ΅°κ°€λŠ” μ—¬λŸ¬λΆ„μ˜ λ³΄κ³ μ„œλ₯Ό 보고 μ˜κ°μ„ μ–»κ±°λ‚˜ μ—¬λŸ¬λΆ„μ—κ²Œ 연락할 μˆ˜λ„ 있겠죠. μ•žμœΌλ‘œλŠ” κ²°κ³Όλ¬Ό 보닀 과정이 μ€‘μš”ν•œ μ‹œλŒ€κ°€ 될 κ²ƒμž…λ‹ˆλ‹€. μ—¬λŸ¬ λΆ„μ˜ 여정을 잘 기둝해 λ‘μ„Έμš”. 그게 μ—¬λŸ¬λΆ„μ˜ 이야기가 되고 μ—¬λŸ¬ λΆ„μ˜ λ„€λŸ¬ν‹°λΈŒλ₯Ό λ§Œλ“€κ²λ‹ˆλ‹€.

이 μˆ˜μ—…μ„ 톡해 μ—¬λŸ¬λΆ„μ€ λΈ”λ‘μ²΄μΈμ΄λΌλŠ” 무기λ₯Ό ν•˜λ‚˜ 더 μ±™κ²ΌμŠ΅λ‹ˆλ‹€. λ¬Όλ‘  λͺ¨λ₯΄λŠ” μ‚¬λžŒλ„ AI에 물어보면 무엇인지 μ•Œμˆ˜ μžˆμŠ΅λ‹ˆλ‹€. ν•˜μ§€λ§Œ, μ—¬λŸ¬ 뢄듀이 μˆ˜μ—… μ‹œκ°„μ— λ°œν‘œν•˜κ³  배운만큼으둜 μ΄ν•΄ν•˜κ³  κ²½ν—˜ν•˜κΈ΄ 쉽지 μ•Šμ„κ²λ‹ˆλ‹€. 아직 AI와 λΈ”λ‘μ²΄μΈμ˜ 결합은 μ„±μˆ™ν•˜μ§€ μ•Šμ€ μ΄ˆκΈ°μž…λ‹ˆλ‹€. μ–‘μͺ½ κΈ°μˆ μ€ μ„œλ‘œλ₯Ό λ³΄μ™„ν•˜λŠ” 역할을 ν•©λ‹ˆλ‹€. λ”°λΌμ„œ, λΆ„λͺ…νžˆ 두 기술이 κ²°ν•©λ˜λŠ” μ§€μ μ—μ„œ κΈ°νšŒκ°€ μžˆμ„κ²λ‹ˆλ‹€. 이제 막 μ‹œμž‘λœ λΈ”λ‘μ²΄μΈμ˜ 여정을 μ—¬κΈ°μ„œ 끝내지 말고, 관심가지고 더 곡뢀해 λ³΄μ‹œκΈ° λ°”λžλ‹ˆλ‹€.

μˆ˜μ—…μ„ 톡해 μ—¬λŸ¬ λΆ„κ³Ό 인연이 λ˜μ–΄μ„œ κΈ°μ©λ‹ˆλ‹€. μ €λŠ” 인연을 μ†Œμ€‘νžˆ μƒκ°ν•˜λŠ” μ‚¬λžŒμ΄λ‹ˆ μ–Έμ œλ“  κΆκΈˆν•œκ²Œ μžˆκ±°λ‚˜ 쑰언이 ν•„μš”ν•˜λ©΄ μ—°λ½μ£Όμ„Έμš”. μ΄λ©”μΌλ‘œ μ—°λ½μ£Όμ‹œλ©΄ λ©λ‹ˆλ‹€. 이 μˆ˜μ—…μ΄ μ•žμœΌλ‘œ μ—¬λŸ¬λΆ„μ˜ ν•™μ—… 여정에 μ‘°κΈˆμ΄λ‚˜λ§ˆ 도움이 λ˜μ—ˆκΈΈ κΈ°μ›ν•©λ‹ˆλ‹€.