DEV Community: Lumir S Vinod

Why is most trading psychology advice useless? | Lumir S Vinod

Lumir S Vinod — Mon, 20 Jul 2026 05:07:11 +0000

To read the original version, click here.
Most of it screams about money management and patience.
But do you know what the problem is?

It’s very easy to say, “Be patient” or “Money management is more important than trading strategies.” That’s generic advice.

What they fail to explain is why people can’t manage money or why they struggle to be patient.

The answer lies in psychology.

Addressing those underlying psychological reasons can help traders improve or at least become more aware the next time they’re in that situation.

But many of these so called advisors don’t do that.

They’re chasing views, not the quality of the content.

So before getting carried away by some trading advisors, first analyze whether they only tell you what to do instead of explaining why people can’t do it and how to overcome the psychological biases that prevent them from doing it.

So, if you want that type of content, you’d Better Follow Lumir.

Stop building in public. | Part 1 | Lumir S Vinod

Lumir S Vinod — Sun, 19 Jul 2026 17:12:18 +0000

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Stop building in public.
Here's why.

I started building in public a while ago.
My first 1–3 ventures failed, and I shut them down. That's supposed to be part of the "build in public" journey, right?
But here's what no one talks about.

Some people lost trust in me because I failed.
Now I've started something new, and I'm committed to seeing it through. But progress is slow, and people who watched my previous journey may already assume this one will fail too.
It gets worse.

Imagine pitching to an investor. They check your social media and see a timeline full of projects you started and later abandoned.

Some investors will appreciate the lessons.
I don't think the people who appreciate that would bet their hard-earned money on potential alone, would they?
There's a psychological reason for this.
It's called negativity bias and belief perseverance.
People naturally give more weight to negative information than positive information. A history of failed public projects can overshadow your skills, discipline, and growth.
Once people start believing you're someone who stops things halfway, they tend to keep believing it.
After you succeed, your failures become an inspiring story.
Before you succeed, they're just failures in the eyes of many.
Build in public if you want.

Just understand that you're not only documenting your journey.
You're also shaping your reputation.

One of the biggest trading mistakes (US$1.4 billion LOSS) in history | Lumir S Vinod

Lumir S Vinod — Sun, 19 Jul 2026 17:09:07 +0000

One of the biggest trading mistakes (US$1.4 billion LOSS) in history and the psychological reasons behind it

Nick Leeson (Barings Bank, 1995)

He made a loss of US$1.4 billion by trying to hide his losing positions and doubling down instead of accepting the losses.

Psychological reasons:

Loss aversion: Humans feel the pain of losses much more intensely than the pleasure of equivalent gains. So, he increased his position to avoid realizing the loss.

Sunk cost fallacy: He made decisions based on the money he had already lost, not on whether those decisions would help him in the future. He thought, "I have already invested so much money," so he asked, "How do I get back what I have lost?" instead of, "What should I do now?".

Overconfidence: As he had generated large profits previously, his overconfidence grew over time with experience.

Hope bias: His decisions became driven by hope rather than probabilities.

Accept the loss and improve. Never hesitate to accept.

Kill Your Enemies | Lumir S Vinod

Lumir S Vinod — Sun, 29 Mar 2026 05:40:53 +0000

“You have no enemies. No one in the world is your enemy. There is no one you need to hurt.” — Thors the Troll of the Jom (Vinland Saga)

A few weeks ago, I watched the anime Vinland Saga. As some of you may know, some time ago I was the kind of person who would go to any extent to win. If there was an opponent or an enemy standing in my way, I would do anything to defeat them. I would come up with plans to destroy them, and I didn't care whether it involved manipulation, emotional games, brainwashing, or anything else.

I don't want to reveal everything, but there are two incidents I can share by changing the scenario a little.

Once, I planned to get some students to join something so that I could get a commission. Some students came to me for help, but later they wanted to buy the same thing from someone else. In their point of view, I was a helpful person, and they trusted me. Three students (not the exact number) followed what I told them, but they still don't know that I was the one pulling the strings.

I was the invisible hand behind everything. I used their information to stop them without them realizing it. Some of their classmates doubted me, but the two students I had influenced were ready to go against their own classmates to prove that I was innocent. Yes, I manipulated, and used mind games to give them a checkmate by using their emotions.

Another incident happened in the early days of my education (I don't want to mention the institute name). There was a particular lab exam where we had to write programs. In real life, you don't need to memorize such programs, especially if you come from a coding background. No one can realistically memorize two pages of code with no logical connection, because it's pure syntax. If I had access to a computer, I could easily solve the problem using the internet, since the exam was supposed to evaluate problem-solving skills. But in that exam, it was completely different. It was like using chopsticks to build a well.

In my class, I was the one who prepared notes and shared them to make things easier for my classmates. I was sure that most of them, except me and my best friend, would use copies to pass the exam. They wouldn't really understand the code, but they would still write the answers somehow.

So I made a plan. I wanted to prove that the exam system itself was wrong. I knew that if everyone wrote the correct answer, the examiner would think the question was easy to memorize. So I intentionally made the notes wrong for that particular question. My plan was that when many students wrote the wrong code, it would show that the question could not realistically be memorized.

You may think I should have done nothing, but if I had done nothing, they would have used the internet or other sources to get the correct answer anyway. I didn't want that to happen. I told this plan only to my friend, and we did it. It worked, but in the end, neither I nor my friend got the hard question.

After these incidents, I started rethinking my mindset. But I still feel that if someone becomes my enemy, I can go to any extent to defeat them.

After that, I watched Vinland Saga, and it gave me more openness. I started questioning, who are my enemies? What really is an enemy? What is its definition?

Enemies are relative. The opponents I came across are fighting for the same reasons as me, for their survival, for their families, or for their rights, just like me. So they are heroes of their own stories, but ideologies make us clash. So enemies are just a badge we give to someone who is not for our ideology. But they are also fighting for their rights.

Violence or unethical ways are not good. It becomes a cycle. If I do something like that and destroy someone's life, then his or her relatives or family will come against me, and this will go on as a cycle that never ends. Like Thors once said, a true warrior does not need a sword.

But now you may think, what about people who murder, kidnap, or rape? Are they also fighting for their rights? That is where the philosophy gets complicated, and if you do not understand it correctly, you may end up being naive and allow harm.

Core logic of the philosophy:
"Enemy" is not a person → it's a state of conflict
People act based on ignorance, fear, survival, or incentives
If you remove hatred → the "enemy" disappears conceptually

People who rape or murder are not "misunderstood friends." They are committing serious crimes and causing real harm.
So what are they? Legally: They are criminals people who violate laws and must be stopped and punished.
These acts often relate to things like:
Antisocial Personality Disorder (lack of empathy, disregard for others)

Extreme conditioning, trauma, or ideology
Power, control, or impulse-driven behavior

But important:
Not all criminals are mentally ill
And mental illness ≠ violence by default
Morally / socially:
They are dangerous individuals who must be:
restrained
prevented from harming others
held accountable

Society exists to protect innocent people first, not to justify offenders.
So you should have to understand:
You don't hate them blindly
Maximum defensive action
Zero tolerance for harm

What is NOT justified
Revenge
Anger-driven violence
Punishment by individuals (vigilantism)

That's why societies rely on institutions (police, courts) instead of personal retaliation.
Violence for ego/emotion ->wrong
Force to stop immediate harm ->sometimes necessary

Now I can say it loudly: I have no enemies.
Conclusion
Enemies are not people but situations created by conflict, fear, and opposing ideologies, and when we remove hatred, the idea of an enemy begins to disappear. However, protecting innocent people is still necessary, so the goal is not revenge or destruction, but controlled action guided by justice, responsibility, and awareness.