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Bitcoin education that doesn't suck. Learn Bitcoin: The Journey, Rabbit Holes, Glossary. Free. Ad-free. No Tracking. Open source. Bitcoin only. No bullshit.

Joined October 2023
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Checked it against daily closes. True, so far: 2011: -92.7% 2013-15: -84.5% 2017-18: -83.8% 2021-22: -76.7% 2025-26: -53.1%, still open Odd detail: -53.1% is exactly how deep the summer 2021 dip went, and that one hit a new high three months later.
NEW: Bitcoin is experiencing its shallowest bear market in its history 👀 BMTV Analyst Sean Hagan says "As we enter the end of this month, there's also a strong argument that we have served our time in terms of time-based capitulation" 🚀
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Today, moving coins to a fresh address is the best quantum defense you have. After a quantum computer shows up, moving them is the risk. Spending puts your public key in the mempool until the next block, and Google’s March paper put cracking one key at about 9 minutes.
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One row missing: 2008: no price. No coins, no blocks, no network. Just a nine-page PDF Satoshi emailed to a cryptography mailing list at 2:10pm Eastern, 18 years ago today. The genesis block was still two months away.
Historical Bitcoin prices on Halloween 🎃 2013: $200 2014: $340 2015: $314 2016: $700 2017: $6,200 2018: $6,320 2019: $9,170 2020: $13,750 2021: $61,840 2022: $20,620 2023: $34,500 2024: $72,102 2025: $109,604 2026: $77,400 HODL 🚀
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It still reads well, and it takes about 20 minutes: learnbitcoin.com/bitcoin.pdf
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Bitcoin turns 18 today. Satoshi sent out the whitepaper on Halloween, 2008. Fitting, because it’s been buried at least 477 times since. Every tombstone in this video is a real obituary, dropped in the year it ran. Watch where they pile up. Hint: not at the bottoms.
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Multisig in 35 seconds. Three keys from three different makers, any two sign. Lose one, spend with the other two. Steal one, steal nothing. A bug in one brand breaks nothing. The part people skip: back up the wallet descriptor. Without it, two seeds can’t find the coins.
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Per Binance: the laptop let the attacker into a service container that could submit withdrawals. No sign of a leaked private key so far, and it “was not a single one-click action.” Issuers froze $2.7B of stablecoins. Nobody can freeze the 18,270 BTC the attacker still holds.
how does one laptop result in 6B being stolen? that doesnt sound plausible
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Binance says it will cover all $6.3B of yesterday’s hack from its own funds. Good for its customers. Not every custodian could. Here are the ones that couldn’t. Binance paused withdrawals after the hack. Coins on your own keys don’t have a pause button.
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“Put a fork in it. It’s done.” @PeterSchiff, March 2020. Bitcoin was $7,896. He’s been writing bitcoin’s obituary for 13 years, so we put all 11 of his dated calls on one chart. Bitcoin is still here. The awkward part: his last two calls are holding up.
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Most devs I've met have found their love of bitcoin by trying break it.
Bitcoin Core is some of the most reviewed code in the world. We were curious how our frontier AI model would handle it. Last month we ran 16 agents across 5 of the top models for a week to look for issues in Bitcoin Core v32.0rc1 Impressively, they surfaced two minor items - both now disclosed responsibly. Agentic teams have been a huge unlock so far for our security efficiency. They're also remarkable to watch.
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New rabbit hole: Quindecillions. Why nobody can stumble on your bitcoin. After our vanity address posts, the same two questions kept coming: did the address already have coins in it, and how many wallets did the search find on the way? Here is the arithmetic, as a wall of drawers. A credited recreation of James D'Angelo's 2014 Blackboard lesson. learnbitcoin.com/rabbit-hole…
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An AI math shortcut is Nic's gamma-ray burst: no odds, nothing to do. Fair. Quantum is a known algorithm waiting on hardware, and there hygiene matters. Shor needs a public key. A coin behind an unspent hash shows none until it moves. 7.1M BTC (35%) do. chainquery.com/reports/quant…
“Bitcoin would be thrown into total disarray...” @nic_carter shares his take on the possibility of AI breaking public key encryption vs quantum risk. This is his honest read. Share your thoughts below.
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Bitcoin Core 32.1, 31.2 and 30.4 are out this week, plus a final 29.5. 29.x is now end of life. In two weeks Core publishes details of 3 medium/high severity bugs that were fixed in 30.0. If your node is on 29 or older, upgrade before then. bitcoincore.org/en/download/
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Nodes on 30 or 31 already have those fixes. 31.2 is a drop-in maintenance release: we moved both ChainQuery nodes from 31.1 today, about 20 seconds of downtime each, no reindex. 32.x is a bigger jump (new relay limits, new RPC server, txindex rebuild), so plan it separately.
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