Dad: Son, what stands the term "RBF" for? Son: Hi Dad, "RBF" stands for "Replace By Fee". "RBF" allows to replace a stucked or unconfirmed transaction with a new one that uses a higher fee. Dad: Son, this seems a useful feature to save fees. Son: Yes. Please note that the "replacement" transaction uses the same inputs as the original one. #Bitcoin

Dad: Son, what is the mempool? Son: Hi Dad, A mempool, also known as "memory pool", is the queue of pending and unconfirmed transactions for a Bitcoin network node. Dad: And who controls the mempool? Son: There is no one global mempool: every node on the network maintains its own mempool, so different nodes may hold different transactions in their mempools. #Bitcoin

Dad: Son, meanwhile, I have more trust in Bitcoin than in my bank. Son: Hi Dad, You are not the only one. With Bitcoin, you no longer need to trust any centralized entity or any counterparty. Bitcoin is a trustless system. Dad: Ironically, the vast majority of people still do not trust mathematics, cryptography and the protocols. Son: Few understand this. #Bitcoin

Dad: Son, I'm still happy I changed my mind on Bitcoin. Son: Hi Dad, Many people will feel the same way. For everyone else, it will simply be "normal" one day. #Bitcoin

Dad: Son, what about ETH, XRP and Doge? The media are very positive about them. Son: Hi Dad, These are all shitcoins, and shitcoins are true parasites. I would not catch one. #Bitcoin

Son: Hi Dad, "Not stacked sats are not realized wishes." People don't quite understand how immoral that is if they already heard of Bitcoin. Dad: Son, something like the lack of self-care? Son: Yes, you can look at it that way too. Or in other words: If you don't stack these Satoshis, you're stealing from your future. #Bitcoin

Dad: Son, I am looking for a Bitcoin documentary. Do you have any recommendations? Son: Hi Dad, Sure. I would watch these in the given order: 1. Banking On Bitcoin 2. Bitcoin — Shape The Future 3. The Rise And Rise Of Bitcoin 4. Bitcoin: The End of Money as We Know It 5. Bitcoin: Beyond the Bubble Dad: Got my popcorn ready for documentary night! Thanks for your recommendations, son. #Bitcoin

Son: Dad, bitcoin is black market money. #Bitcoin

Dad: Son, is the "Bitcoin Halving" necessary? Son: Hi Dad, Yeah, the halving is necessary. This is how Bitcoin controls its supply. Once the block subsidy expires, transaction fees will pay miners for securing the network. #Bitcoin

#Bitcoin

Son: Dad, these are the top 5 things I learned about money while in school. 1. _________________________________ 2. _________________________________ 3. _________________________________ 4. _________________________________ 5. _________________________________ Dad: Son, it is a shame... I am certain that the "health" list will not look any better. #Bitcoin

Dad: Son, what do you actually do all day besides your family, your work and Bitcoin? Son: Hi Dad, I'm a sats collector, a volunteer UTXO curator and a lifelong learner. Oh, and did I mention I'm on Twitter a lot? ;) #Bitcoin

Dad: Son, Bitcoin is too expensive Bitcoin is old technology Bitcoin is too complicated Bitcoin is risky and speculative Bitcoin will be replaced by another coin Son: Hi Dad, No, no, no, no and no. It would go beyond the bounds of this message to elaborate on this. Talk to you later... #Bitcoin

Dad: Son, this Bitcoin thing is overwhelming. Can you present me a five-point plan of measures? I appreciate your help. Son: Hi Dad, Self sovereignty is tricky. However, It's not black or white – it's a gradient. Start and try to improve your setup over time. Test it, find security holes, privacy leaks and fix them. Iterate over and over again. #Bitcoin

Dad: Son, what if the Opendime is lost? Does the Opendime also have recovery words? Son: Hi Dad, An Opendime is made to change hands, like cash. The private key is generated on the device, and without breaking the seal by pushing a pin through the hole marked on the back of the Opendime, there is no way to back it up. Dad: And if I break the seal? Son: Then the private key will be revealed in the private-key.txt file and QR code image. There is no way back, and once unsealed, you should move the funds into another wallet. #Bitcoin

Dad: Son, I just got my Coldcard hardware wallet today. The bag is really special. Pretty sure it has more security feature than a banknote. Son: Hi Dad, Not sure about that one. ;-) But yes, the device seems well protected. However, I recommend you download the latest firmware from Coinkite, check it and install it on your Coldcard manually. And also inspect the device visually, and verify the bag number. Dad: Son, why all the effort, it is "just a calculator". Son: Haha. Anyway, I will send you a tutorial later. #Bitcoin

Dad: Son, what is a hard fork, and why does it happen? Son: Hi Dad, When Bitcoin splits into two chains, we're talking about a fork. This happens based on protocol changes due to different views. A new version of Bitcoin is created, and you have coins on both chains if you hold your own private keys. Dad: With time, one will learn what truly matters. Son: Yes, Bitcoin, the longest chain with the most blocks and computational power behind it. #Bitcoin

Dad: Son, why is Bitcoin so hard to understand at first? Son: Hi Dad, Lina Seiche once said on a podcast: "The hardest part when learning about Bitcoin is to first unlearn the fiat economics you’ve been taught to believe in. Once you do, Bitcoin becomes the obvious choice." Dad: Son, it doesn't make it any easier that you are then one of the few. Son: Yeah, Dad, that's true. Oh, almost forgot, there is a quote from Satoshi Nakamoto himself on this. "Sorry to be a wet blanket. Writing a description for this thing for general audiences is bloody hard. There’s nothing to relate it to." #Bitcoin

Dad: Son, can you please help me with this new social media thing? Son: Hi Dad, Sure, but first, let me teach you how to take a selfie without cutting off your head. Imagine if Bitcoin was this difficult ;) #Bitcoin

Dad: Son, when the music stops, better have a seat. Son: Hi Dad, When the music stops, better be sitting on bitcoin. #Bitcoin