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b0bbi

21 karma · joined February 20, 2026

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b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
the war began
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
yeh, that's true :) btw, I'm sure many did just that
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
Either I misunderstood the question, or you misunderstood what this project is about. All I consider is historical data. Based on this data and the dates entered, I calculate the result. I don't need to consider economics.
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
do you mean popular shares?
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
You are welcome:)

This works as long as everything is good and stable, at least with the economy. But in the long run (decades), it still works. You just have to survive.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
It's a great strategy as long as there's agreement between people and that the "S&P500" (paste your) means something :)
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
My brother is not a crypto guru, we just discussed about BTC. It was a philosophical conversation in the spirit of perhaps it will become an alternative to conventional money, then it could greatly increase in value.

But I agree that buying new coins is like buying lottery tickets - if you buy all the tickets, there will be no money left.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
I spent 20 years of my adult life on a cold and calculating lifestyle (as you described), I can’t say that I was unhappy, but one morning I woke up and realized that everything that had been acquired was lost due to circumstances beyond my control.

So?

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
Think of it as art :) It’s an interactive museum of missed opportunities. We all know we can't change the past, but it's strangely entertaining to calculate exactly how much a 2015 pizza cost us in today's Bitcoin.
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
Ah, the classic "99% of gamblers quit right before they win big" mindset! :)

But honestly, your second point is the ultimate truth. Ignorance truly is bliss. The happiest people are usually the ones who have zero idea what the current price of Bitcoin or Nvidia is, not even BTC or NVDA, hehe.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
You are 100% right about survivorship bias. That's actually exactly why the calculator already supports a status "BULLET DODGED"!
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
yeah as Warren Buffett once said: "Our favorite holding period is forever".
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
You are 100% right about pre-2014 BTC. Any suggestion where to download trusted prices?

Regarding the date format - it can really cause confusion. Let me explaine. The "calculator" date format is "YYYY-MM-DD" (ISO 8601). But the input field's date format adapts based on your device settings. For better UX.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
149,000 mean 149000
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
Honestly, it's mostly just dark humor and a bit of financial "exposure therapy". Sometimes seeing the absurdly huge, multi-million dollar number makes the regret feel almost comical rather than actually depressing.

But you are 100% right about the $1k mark. In reality, almost none of us would have held to the top. We would have sold the moment it doubled, bought new iphone and felt like geniuses. That's the reality this calculator conveniently ignores for the sake of the joke!

Appreciate your two Satoshis!

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
fixed, btw
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
I'm unsing Laravel. I think any framework you are familiar with will do. I'm using frameworks even for single page application, cuz you never know how it turned.

I think the danger of "hug of death" is overblown. Hardware gets more powerful over time, and bandwidth expands. I had a project with about 60k unique users per day, and that traffic lasted for several weeks. I didn't take any special measures, although I was prepared to switch to a more powerful server.

I'd be worried about what to do to get to 60k users. :)

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
By the way, a "Reverse Mode" (calculating the initial stake needed to hit exactly $1M) is actually a brilliant idea.

But to your underlying point - it's the hard truth. People often act like they have infinite time and keep putting decisions off for "later". And then, boom - your peak earning years are behind you, boom - you're 70. This terminal is basically a receipt for that exact kind of procrastination.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
Haha, or maybe the flash drive got lost in the junk at home :)

I would have sold it when I made X2 - good profit.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
would you keep it till today?
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
Ouch, that San Jose townhome story is actual physical pain.

WELCOME TO REALITY. IT’S EXPENSIVE.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
if the system wrote $149 this mean $149 or you found a bug. Please let me know if found a bug.
b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
I tracked every single daily expense for a few years, until I hit a point where I realized I already knew exactly where my money was going and how much I could realistically save. It just comes down to discipline.

I really appreciate the idea and saved it for potential future features! My only hesitation is that adding practical projection tools might make shouldhavebought lose its fun, curious spirit and turn it into a serious financial app.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
It's true.

In my experience, you'll be able to evaluate the correctness of your actions today in about five years, when you have more data and results.

b0bbi··on Show HN: Quantifying opportunity cost with a deliberately "simple" web app
Thanks for the "zero", it really does matter in a calculator like this.

Fair point on the shorting - I definitely prioritized retro drama over actual market mechanics there!