제가 20대로 돌아간다면 이걸 할 겁니다

Key message (regret → action, not dwelling)

• If you went back to your 20s, you’d mainly try to live without regret—with the understanding that you already did what you could with the knowledge and limitations you had then.
• The speaker distinguishes regrets:
  • “I should have done that” (regret about specific choices) tends to be less productive.
  • “I should have done better” (regret about effort/quality) is more constructive because it points to how to improve going forward.

Wellness mindset / self-management philosophy

• Do everything you can at the time: not knowing what you don’t know in your 20s is normal; the win is maximizing effort with what you have.
• Don’t treat regret as a roadmap to a different life—use it as feedback to refine your methods now.
• Build a “diligent life” identity: people the speaker trusts most are those who don’t regret their choices because they truly did their best.

Productivity & skill strategies (the practical “what to do”)

1) Expand your horizons via foreign languages (not exam-only)

• Don’t study languages only for tests (e.g., TOEIC-style exam English).
• Study to reach a level where you can:
  • Read real material (articles, research, domain content)
  • Converse with people in that language
• Why it matters:
  • More language = access to more knowledge/content + more people you can meet.
• Side benefit:
  • Studying a foreign language also strengthens your native-language communication and your ability to create/produce content.

2) Make reading a habit (light, frequent input)

• Many people in their 20s don’t read enough, which makes it harder to study and grow intellectually.
• Reading is described as mental training that improves your ability to:
  • absorb ideas
  • reflect
  • write more clearly
  • communicate with the world
• Time-efficient approach:
  • Use small pockets of time:
    • read on the subway / during travel
    • listen to audiobooks if driving
  • Treat it as a habit, not a huge time commitment.
• Core principle:

  “Learning without studying is meaningless; studying without learning is also meaningless.” The goal is understanding/enlightenment/wisdom, not just consuming information.

3) Learn to “read the world” through writing & speaking

• The speaker argues that the world’s high-quality information is mostly carried through:
  • writing
  • speaking
• Without these skills, people may keep misinterpreting reality even as they get older.
• Reading + writing + speaking help you understand:
  • what other people in society think
  • not just your own perspective

4) Improve presentation & communication skills with structured practice

• In the video era, people may listen to lots of content but don’t train speaking enough.
• Recommended training approach:
  • Practice speaking clearly on camera (record yourself).
  • Focus on conveying intent without offending others.
  • Learn how the listener will receive your message.
• A concrete method inspired by Benjamin Franklin / the speaker’s father:
  • Choose a book (or a page/2).
  • Read a page
  • Summarize
  • Then go beyond summary:
    • reconstruct the argument in your own words
    • rewrite it in your own sentences
  • Present it verbally after rewriting
• For employees/young learners, the speaker uses a similar training workflow.

5) “Basics of being human” to build in your 20s

The speaker emphasizes three foundation skills that should be built early (so you have time before work-life pressure peaks):

• Foreign languages
• Reading
• Writing/speaking/presentation skills

Why now vs later:

• In your 30s, making a living dominates, so building these foundations becomes slower.

Self-care / habit emphasis embedded in the advice

• Use small, repeatable routines (subway reading, audiobooks) rather than relying on big bursts of motivation.
• Replace passive learning (only watching videos) with active practice (record, rewrite, present).

Presenters or sources

• Charlie Munger (late; referenced via an interview)
• Benjamin Franklin (referenced through The Autobiography)
• Reporter Joo Yeon-hyung / Reporter Joo (mentioned as an example in speaking/terminology context)
• OECD (referenced as examples of English-based research content)
• Kyung Hee University (mentioned as a connection in the story)
• Seino’s teachings (mentioned regarding speaking/presentation training; exact identity not specified)
• The Romance of the Three Kingdoms (mentioned as a practice example)
• International soccer (used as an analogy for learning performance vs watching)