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@ Marty Bent
2025-06-11 04:37:33Marty's Bent
Sup, freaks? Your Uncle Marty did a little vibe coding a couple months ago and that vibe coding project has turned into an actual product that is live in the Google Chrome web store and will soon to be live in the Firefox add-on store as well. It's called Opportunity Cost and it is an extension that enables you to price the internet in Bitcoin.
Opportunity Cost – See Prices in Bitcoin Instantly
Check it out!
This whole process has been extremely rewarding to me for many reasons. The first of which is that I've had many ideas in the past to launch a product focused on bitcoin education that simply never left my brain because I never felt comfortable paying a developer to go out and build a product that I wasn't sure would ultimately get product market fit.
Due to the advancements of AI, particularly ChatGPT and Replit, I was able to spend a few hours on a Saturday vibe coding a prototype for Opportunity Cost. It worked. I side loaded it into Chrome and Firefox, tested it out for a few days and decided, "Hey, I think this is something that's worthwhile and should be built."
Backtracking just a little bit, the initial idea for this app was to create an AR application that would enable you to take pictures of goods in the real world and have their prices automatically converted to bitcoin so that you could weigh the opportunity cost of whether or not you actually wanted to buy that good or decide to save in bitcoin instead. With the help of Justin Moon from the Human Rights Foundation and Anthony Ronning from OpenSecret and Maple AI, I was pointed in the right direction of vibe coding tools I could use to build a simple MVP. I took their advice, built the MVP, and demoed it at the Bitcoin Park Austin weekly AI meetup in mid-April.
The next week, I was talking with a friend, Luke Thomas, about the idea and during our conversation he made a simple quip, "You should make a Chrome extension. I really want a Chrome extension that does this." And that's what sent me down the vibe coding rabbit hole that Saturday which led to the prototype.
After I was comfortable with and confident in the prototype, I found a young hungry developer by the name of Moses on Nostr, I reached out to him, told him my idea, showed him the prototype and asked if he thought he could finish the application for me. He luckily agreed to do so and within a couple of weeks we had a fully functioning app that was officially launched today. We're about 12 hours into the launch and I must say that I'm pleasantly surprised with the reception from the broader Bitcoin community. It seems like something that people are happy exists and I feel extremely happy that people see some value in this particular application.
Now that you have the backstory, let's get into why I think something like Opportunity Cost should exist. As someone who's been writing a newsletter and producing podcasts about bitcoin for eight years in an attempt to educate individuals from around the world about what bitcoin is, why it's important, and how they can leverage it, I've become convinced that a lot of the work that needs to be done still exists at the top of the funnel. You can scream at people. You can grab them by the shoulders. You can shake them. You can remind them at Thanksgiving that if they had listened to your advice during any Thanksgiving in the previous years they would be better off financially. But at the end of the day most people don't listen. They need to see things. Seeing things for yourself is a much more effective teaching mechanism than be lectured to by someone else.
My hope with Opportunity Cost is that it catches the eye of some bitcoin skeptics or individuals who may be on the cusp of falling down the bitcoin rabbit hole and they see the extension as a way to dip their toes into bitcoin to get a better understanding of the world by pricing the goods and services they purchase on a day-to-day month-to-month and year-to-year basis in bitcoin without having to download a wallet or set up an exchange account. The tippy top of the bitcoin marketing funnel.
That is not all though. I think Opportunity Cost can serve individuals at both ends of the funnel. That's why it's pretty exciting to me. It's as valuable to the person who is bitcoin curious and looking to get a better understanding as it is to the hardcore bitcoiner living on a bitcoin standard who is trying to get access to better tools that enable him to get a better grasp of their spending in bitcoin terms.
Lastly, after playing around with it for a few days after I built the prototype, I realized that it has incredible memetic potential. Being able to take a screenshot of goods that people are buying on a day-to-day basis, pricing them in bitcoin and then sharing them on social media is very powerful. Everything from houses to junk items on Amazon to the salaries of pro athletes to your everyday necessities. Seeing the value of those things in bitcoin really makes you think.
One day while I was testing the app, I tried to see how quickly I could find goods on the internet that cumulatively eclipsed the 21 million supply cap limit of bitcoin. To my surprise, even though I've been in bitcoin for 12 years now, it did not take me that long. The opportunity cost of everything I buy on a day-to-day basis becomes very clear when using the extension. What's even clearer is the fact that Bitcoin is completely mispriced at current levels. There is so much winning ahead of us.
Also, it's probably important to note that the extension is open source. You can check out our GitHub page here. Submit pull requests. Suggest changes to the app.
We've also tried to make Opportunity Cost as privacy preserving as possible. Everything within the extension happens in your browser. The only external data that we're providing is the bitcoin to fiat price conversion at any given point in time. We're not data harvesting the web pages you're browsing or the items you're looking at. We're not collecting data and sending it to third party marketers. We want to align ourselves with the open and permissionless nature of bitcoin while also preserving our users' privacy. We're not trying to monetize this in that way. Though, I will say that I'm thinking of ways to monetize Opportunity Cost if it does gain significant traction, but I promise it will be in a way that respects your privacy and is as unobtrusive as possible. We'll see how it goes.
Thank you for coming to my TED talk. Please download and use the extension. Let us know what you think.
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Final thought...
East Coast aesthetics over everything.
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