Dad: Son, why do you not use numbers based the word’s indexed number in the BIP39 list instead of the first 4 letters of the recovery word? Son: Hi Dad, That's a good question. Let's quote the BIP39 creators to answer it. "A mnemonic code or sentence is superior for human interaction compared to the handling of raw binary or hexadecimal representations of a wallet seed. The sentence could be written on paper or spoken over the telephone" I think it is wrong to use numbers when the creators intentionally designed the standard so that we use words. Dad: Ok, makes sense. Thanks. #Bitcoin

Dad: Son, if you are feeling down, call mom. #Bitcoin

Dad: Son, do you remember the "Y2K problem"? Son: Hi Dad, Yeah, I remember that "Millennium-Bug" FUD. It's even mentioned in the "The Sovereign Individual" as "Y2K TIME BOMB". You will find it in the "The Transition of the Year 2000" chapter. Dad, why are you asking? Dad: I have been reading about the "2038 problem" and wonder if Bitcoin will be affected as well. Son: No worries, Dad. Bitcoin uses an unsigned integer for the timestamp, so the year 2038 problem is delayed for another 68 years. #Bitcoin

Dad: Son, is there a difference between Bitcoin and bitcoin (upper-/lowercase 'b')? I have seen both spellings in publications. Son: Hi Dad, When expressed using a small 'b', the word bitcoin usually refers to the unit of currency. Dad: And the uppercase 'B' ? Son: Bitcoin with a capital 'B' is typically associated with Bitcoin, the protocol and payment network or to refer to the ecosystem as a whole. Dad: So, "Saving in bitcoin is investing in Bitcoin." Son: "Stacking sats makes Bitcoin better." #Bitcoin

Dad: Son, why not use gold as store-of-value? Son: Hi Dad, Bitcoin is the decentralized financial network. It allows individuals worldwide to store and send value to one another without intermediary agents like banks or payment processors. Dad: Okay, well, that sounds promising. Son: It's a technology that will transform the world. Gold can't compete with Bitcoin. #Bitcoin

Dad: Son, what do you think. What will your kid answer to the question, "What is something your dad told you?" ? Son: Hi Dad, Maybe "I love you" or "You make me proud". What do you think? Dad: What about "Inflation is a hidden tax that unelected Central Bankers impose on your wealth, enslaving you as they fill their pockets by their close proximity to the money spigot"? Son: Hmmm. I will reflect on that... #Bitcoin

Son: Dad, buy bitcoin before you need it. Dad: Son, in my opinion, it is always better to "want" something than to "need" something. Son: And when you "want bitcoin", you realize that Bitcoin is on every level of Maslow's pyramid. #Bitcoin

Son: Dad, Dad: Son? Son: On your Mac, open `Terminal` and then type the following command: "open /System/Library/Image\ Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf" What do you see? :-) Dad: How did you get the Bitcoin whitepaper onto my Mac? Son: I wasn't. It was always there. Dad: Okay, ... Now I am speechless. #Bitcoin

Dad: Son, are the last 16 digits of π a good passphrase? Son: Lol, Dad, that's hilarious. #Bitcoin

Dad: Son, what is a passphrase? Son: Hi Dad, The BIP39 standard supports an optional 25th word, a so-called passphrase. The passphrase encrypts the seed and creates a new wallet. Dad: Son, do I have limitations? Size, or something? Son: On the Coldcard hardware wallet for example, passphrases are limited to 100 characters in length. The on-screen interface supports ASCII characters only. Dad: Okay, that is a powerful feature! Son: So little effort and so much more security. #Bitcoin

Son: Dad, did you know? Bitcoin Core is one of the most reviewed software, maybe it's the most reviewed software ever. Dad: Son, why is that? Son: Bitcoin Core has the biggest bug bounty ever. #Bitcoin

Dad: Son, what is "Cold Storage" exactly? Son: Hi Dad, "Cold storage" is a general term for different ways of securing bitcoins offline. Your signing keys are disconnected from the internet. Dad: So "BlueWallet" must be a hot wallet? Son: Yes. It's connected to the internet. This is perfectly fine for daily transactions and smaller amounts. For storing funds long term, use a dedicated hardware wallet like the "Coldcard" or the "Passport". However, multisig – a "signing combination" of various wallet – would be the best solution. #Bitcoin

Dad: Son, what does SHA256 hashing do? Son: Hi Dad, Let's assume a want to hash this message. The hash would be 64 characters long, always, no matter how long the message is. The hash is always the same if I hash the same message, and there is no way to get back to the original message based on the hash. Dad: So, hashing is a one-way transformation of information and the information is not the information itself. The information for me and others is that the given information is "true". Son: Yes, Dad, you can understand it that way. #Bitcoin

Dad: Son, Bitcoin is like water. Son: Hi Dad, Yes, but also... Bitcoin is like a sponge that soaks up value over time, only to release it when needed. Dad: Okay, let's agree on "Bitcoin is." #Bitcoin

Dad: Son, how can I convert a 24 word seed into a 12 word seed (BIP39)? 12 words can be better memorized. Son: Hi Dad, Converting a 24 into a 12 word seed is impossible. According to BIP 39, a mnemonic seed is converted into a binary seed using PBKDF2-SHA-512. To turn a 24 word seed into a 12 word seed, you'd need to find a 12 word seed that produced the same binary seed, which is believed to be impossible. Dad: Oh, I see. It will take me a while to learn all 24 words. #Bitcoin

Son: Dad, Become your own bank and stop worrying about banks going bankrupt. Dad: Son, mother and I now have a fraction of our reserve in bitcoin. Son: Great. Every fraction of a bitcoin you own is a safer and more secure store of value compared to the fractional reserve scam used by traditional banks. #Bitcoin

Son: Dad, you can spend a fraction of a bitcoin. Dad: Son, no, thank you. That is out of question. Son: The question is: What is your unit of account. #Bitcoin

Son: Dad, don't trust everything you see. Even salt looks like sugar. Dad: Son, what do you want to tell me? Son: Use your Umbrel node to verify if your bitcoin is real bitcoin – or you will be salty in the end. #Bitcoin

Son: Dad, there is no such thing as overproduction in Bitcoin. Bitcoin always paces itself. Everything works as designed and everything is in perfect order every 10 minutes on average. Dad: Son, it seems to me that Bitcoin runs as accurately and precisely as a Swiss watch. Son: Bitcoin is indeed a great timekeeper. #Bitcoin

Dad: Son, what about newer versions of Bitcoin like Bitcoin Cash and BitcoinSV? Son: Nah, Dad. Those are shitcoins! Bitcoin Core 25.0, Bitcoin Core 24.1 Bitcoin Core 23.2, Bitcoin Core 23.1, Bitcoin Core 22.1, … These are newer Versions of Bitcoin. There are other Bitcoin Core alternatives like "Bitcoin Knots", "Libbitcoin" and "BitcoinJ" that don’t fork the blockchain. Dad: How that? Son: Satoshi launched the first Bitcoin client in January 2009. Over time, developers improved it, leading to "Bitcoin Core." Other projects also created compatible Bitcoin versions with the same consensus rules and protocols. #Bitcoin