Good to be here. Read and observed the forum since I joined and must say I like how detailed the discussions here are compared to social media platforms. As a beginner I noticed some topics are mentioned a lot like wallets, security nd scams but I still feel there are always new perspectives. For instance my first impression of bitcoin is that it is more about personal responsibility than anything else. If you loose your keys, you loose your coins and that feels different from banks. For those who have been in the game longer, what was your first impression when you realized how it actually works?
I'm impressed that many times I have always think about utxo model, I used think that when Bitcoin is sent to your wallet address, the received Bitcoin is added to the already balance like the way bank account model works, it took me a very long time to understood how it works and now that I knew it, it's one thing I can see that to explain to anyone new to Bitcoin and they are going to understand it without regurgitating it again, that's how good my head is with UTXOs.
Another is the fact that you can hash public keys 2 times to get a short version and encode it to an address is very fascinating. Same wallet addresses receive Bitcoin, same public wallet address get hash during transaction to checkmate the wallet address before a transaction will be valid on top of Bitcoin stack. Sometimes, one will think that Satoshi is a wizard, no person has ever created similar thing that comes close to Bitcoin and yet still successful.