The Byzantine Generals dillema
I did not understand it, until I had to do it. With my students of the My First Bitcoin we did an exercise of attacking a Castle last Saturday.
We attached and we failed. Because there were "traitors". Messages were passed to NOT attack, while, I, the King of Kura Piedra (this is Stone Fence) have said we should attack together at dawn.
I created this exercise for Lesson 6 of the My First Bitcoin certificate. I consulted with my mentor Huxley and with my AI, Ava.
Here you will see the whole script and the whole activity, that you can play with your family and with your children. https://github.com/MyFirstBitcoin/Light-Node-Directory/blob/78175bfcaaa56d1ad9384b8e4d14e9576abaef45/Curacao%20--%20BTC%20Curacao/%F0%9F%8E%AC%20Lesson%206%20-%20My%20First%20Bitcoin%20-%20COMPLETE%20TEACHER%20SCRIPT%20_%20VERSION%202%20WITH%20CASTLE%20AND%20SWORD.docx
Because My First Bitcoin is open source. We try to share our knowledge amongst all the educational nodes in the world. So BTC Curacao Institute, the Peter Kroll family, sponsors this event in our beautiful Orange House at Eden Mall.
And then, we added Proof of Work. Simply moving 3 stones from a red dot to a green dot. Putting the messages on the ledger so everybody can see them. And the longest chain wins. So we all attacked. Successfully.
No trust. No cheating. Consensus. From the rules and the Proof of Work, consensus is born. Now I understood it.
Try it yourself. With your family. 
Attack at Dawn
Runy Calmera
BTC Curacao Institute
#MyFirstBitcoin
#MiPrimerBitcoin
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In Livingstone, Zambia, while waiting to board a flight, passengers can grab a coffee using Bitcoin at Harry Mwanga Nkumbula International Airport.
Cafe Au Lait ☕️
https://blossom.primal.net/6503226e544f17a7fff4f30e91e0e11d97dd0cf0a1a7f88972bc590aeb1b15b4.mov
I visited this coffee shop on my trip to Livingstone! So cool to see places I previously visited as a tourist popping up on BTC Map and working with our team at @bitcoinvictoriafalls
Email Template for Square Business Owners after you’ve visited their establishment:
Hello and To Whom It May Concern,
I visited your business this week[end] and had a phenomenal experience. Thank you. I currently keep my checking account in Bitcoin and Bitcoin is also my preferred method of payment. I noticed that you have Square payment terminals. I am kindly requesting your consideration in turning on the Bitcoin payments feature, which was recently released. This will assist both myself as a returning customer, and others who want to pay in Bitcoin, while offering you a 0% transaction fee. You can accept the payment in Bitcoin or US Dollars. If you want to learn more about Bitcoin to determine which is the best choice is for your business, a great place to start is:
https://squareup.com/us/en/bitcoin
Look forward to returning to your establishment,
A great way to frame an accepting Bitcoin question to a merchant:
“Have you ever been asked if you accept Bitcoin before?”
It gets them thinking and is more likely to lead to a conversation
Paid in Bitcoin at Steak n’ Shake ✅
Excited to spend some time in Arnhem, interact with the local merchants accepting Bitcoin, and check out a well rooted Bitcoin Circular Economy while sharing a little bit about what’s made us successful so far with nostr:nprofile1qqsrrvzpv54ru6qvffu8deap9fahwu3g9wsnv9x9ylwfekr8g36vk5cpr9mhxue69uhhyetvv9ujuumwdae8gtnnda3kjctv9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tckl7qwv!
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What’s the best way to acquire glyphosate free flour?
Any Bitcoiners have tips for visiting Arnhem, Netherlands? What were your favorite merchants or ways to spend your Bitcoin in Arnhem?
I’m at the Midwest Acquirers Association Conference in Chicago today representing nostr:nprofile1qqst8wuy4ymka07wfnlzcupe3kd8a5vrnn32xjyw3fcez9ygc7ptplspzemhxue69uhkummnw3ezuerpw3sju6rpw4ej7qgmwaehxw309ahx7um5wgh8xamfwdej6etwd9nk6cfwvd5q4ldcnv and making a case for Bitcoin payments
Looking for some help vibe coding an NFL sports betting spreadsheet. Need to pull / scrape betting lines in real time from Pinnacle Sports and find a better way at calculating point spread to win probability. Can anyone help? Willing to pay 100,000 sats or more depending on scope of work
nostr:nprofile1qqs0wa4ucy38r0nel3cmv40ne0lt829pd8enacfntlxqcg5znyqa5jspypmhxue69uhhyetvv9ujuum0wejhyetfvahz6um5v93kktn0wfnj7qg7waehxw309ahx7um5wghx6ctcd9kkzcmfw3skgetv9ehhyee0m98eky question for you:
“My childhood friend is helping a family in Maturin, Venezuela. They need to pay a doctor for performing an operation on their child.
The doctor wants payment in USD
Does anyone have ideas on if there is someone in that area who is willing to exchange USD bills for BTC? Or any other ideas?”
nostr:nprofile1qqstm84k2lp9knmvmf5gw88zvfvar7duvfpqfplryfystdn55ug2gkspz4mhxue69uhhwmm59ehx7um5wgh8qctjw3usz8thwden5te0dehhxarj94c82c3wwajkcmr0wfjx2u3wdejhgtrgqy2 is my favorite podcast guest
nostr:nprofile1qqs2meaqc6kv5z2utvm03reqzcauekjdj7c8r39verlr98w8ynhv37cpz3mhxue69uhkummnw3ezummcw3ezuer9wcq3camnwvaz7tmwdaehgu3dwfjkccte9emkcann9eehqctrv5ctnv9j can you share an LNURL address where I can tip you? I tried to do so while checkout out on your website and downloading a free resource but I only saw fiat enabled
You know what’s hard? Running a 🇿🇲 non-profit from the USA w/ its regulatory regime
You know what’s easy? Voting once a year to take 30% of your neighbors money for the gov to do philanthropy for you
You know what’s easiest? Running a 🇿🇲 non-profit w/ self custody Bitcoin
Giving you a follow. I’ve been free diving with Florida Shark Diving off Jupiter and my family has a condo in West Palm Beach
10-4! I’m always looking for this type of info to pass along to my friends who are shitcoiners but don’t know it. CoinMarketCap does a terrible job of showing BTC vs. ETH etc
What is the hyperlink to accessing this chart on an ongoing basis?
Every single government program that the establishment left in the US is kicking & screaming about was built through monetary colonialism in the Bretton Woods era. The arguments of these programs being benevolent, philanthropic, & just is factually incorrect from a global lens.
Does Bitcoin as hard money drive a renaissance of artisans and craftsman due to the deluge of mass production becoming less appealing because people aren’t trying to constantly rub two nickels together to make a dollar?
nostr:npub1xxcyzef28e5qcjncwmn6z2nmwaezs2apxc2v2f7unnvxw3r5edfsactfly has offered the nostr:npub17cyatz6z2dzcw6xehtcm9z45m76lde5smxdmyasvs00r4pqv863qrs4ml3 course three times in 2024, two times so far in 2025, and has had 76 graduates, averaging 15.2 graduates per cohort. To graduate, learners must attend 4 out of the 5 classes.