Remarkable 2 is really, really good. Relatively fast refresh + touchscreen is amazing.
No official public feedback forum unfortunately:
PDF table of contents could be better: twitter.com/cirosantilli/status/1459844683925008385
They put a lot of emphasis into base calling. E.g.:
- they have used FPGAs to accelerate it on certain models: twitter.com/nanopore/status/841671404588302338, sampe engineer: www.linkedin.com/in/balaji-renganathan-31b98415/
Frobenius theorem (real division algebras) by 
Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01Notably, the octonions are not associative.
This is hot shit, a possible worst case but sure to get there scenario to understand the brain!
Dan Kaminsky approves Linux Kernel Module Cheat by Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01Oh yeah, that felt good. A few months before he died.
Why is COVID-19 so serious in some people but not in others? by Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01There are a few possibilities:
- genetics
- bibliography:
- www.science.org/doi/10.1126/scitranslmed.abj7521 Identification of driver genes for critical forms of COVID-19 in a deeply phenotyped young patient cohort by Carapito et al. (2021)
- bibliography:
- state of the immune system based on disease history
- age
- www.youtube.com/watch?v=nrBiDRZRK5g Maxwell Lagrangian Derivation by Dietterich Labs (2019)
- www.youtube.com/watch?v=yo-Z3RO-eeY Deriving the Maxwell Lagrangian by Pretty Much Physics (2019)
Bitcoin addresses are by convention expressed in Base58, which is a human readable binary-to-text encoding invented by Bitcoin. It is a bit like Base64, but obsessed with eliminating characters that look like one another in popular but stupid fonts like capital "I" and lower case ell "l".
This seems to be one of the earliest strategies used to encode messages.
These messages were originally found with: github.com/cirosantilli/bitcoin-inscription-indexer#payload-size-out-utxo-2vals
The generated text is however rather obfuscated by the limitations of Base58.
The following transactions contain base58 encoded messages on addresses:
- tx 7961b5ae2f053a16d5c589104f87edfabe80fcae185832ea185e7f0cf06c7747 (2011-12-01) is a Lorem ipsum, 7961b5ae2f053a16d5c589104f87edfabe80fcae185832ea185e7f0cf06c7747 is another one:
11Lorem1psumDo1orSitAmetXXXWAEZ6C 11ConsecteturAdipiscingE1itYQHEPM ... - www.blockchain.com/btc/tx/751ff11286a43da5d6cf7da8f5bc736e522bbd698ec03c76c63368e5260667e6 seems to contain a bunch of names. It is very noisy, but feels too much coincidence not not be intentional
1JameLs3Q9enoB7VT3bDc3XYoziRDqW7o6 1NeLLAADSPYk4wvzCbiac362DdTWNqnWxV 1MaRinaQFfRbEDoz5FvDaJoST1PsqQQhL7 1DioNTe4eHexc74CPPCwJMGPHaDE8za4BM - www.blockchain.com/btc/tx/ace9524519577138ca98ec01651758fd1e5ec33ce0110c6681eccba0e716cc7a is also possible,
11Bitta1ktvchristmasspecia1WNDvAarepeats over an over, so something alongBitta Christmas Special - tx 8ffacbb18f63576fe323cbf2acc6c4c01c86aadf13d8352cfdd39d91916d98c8 (2011-12-05) advertises etchablock.com:so maybe this is the service used to for those base58 encodings. It is down as of 2021, and there are no decent archives unfortunately: web.archive.org/web/20130301000000*/http://etchablock.com/. Some online mentions:
EtchABLockDotComGivesYou BLockChain1mmortaLity- www.reddit.com/r/Bitcoin/comments/s9cra/comment/c4d5x9b/ suggests that the creator is a "Jonathan Ryan Owens". Some profiles:
- www.blockchain.com/btc/tx/028b8514a4f6cc96ac3c1c83dbb117ab9dc5eb09deab7b49bf038fd460173127Source text: en.wikipedia.org/wiki/The_Aristocrats
11TheSetupTheJokeA1waysXXXXTF9Wzp 11BeginsWithAFami1yActGoingY3Q4qw 111nToSeeATa1entAgentThoseXZxb7hQ - www.blockchain.com/btc/tx/89010c791c9d7ed24affa1d638b12179d2ca7ec91704fe906834386f43a8101dSource text: en.wikipedia.org/wiki/United_States_Declaration_of_Independence
11When1nTheCourseofHumanXXXXdfMdQ 11Events1tBecomesNecessaryXYC2rJ5 11ForonePeop1eToDisso1veTheXKXUiD - www.blockchain.com/btc/tx/c99179465b2d3b88fb6ede5d2e42015b15ec641e7a68f18216acaf741723de00Possible source: en.wikipedia.org/wiki/C_data_types
11The1ntegerDataTypesCharXXZZwJAn 11ShortLongAnd1ntCanBeXXXXXVfzLKj 11EitherSignedorUnsignedXXXYMhhUY - www.blockchain.com/btc/tx/3bbd94d22346a3bfb44257293e10c3b5c9ee39230c1cd358bdce2bf03c61ba0b en.wikipedia.org/wiki/Emerald_Tablet
12TisTrueWithoutALie22222221wT3qjn 1CertainAndMostTrue2222222225YPnJF 12ThatWhich1sBe1ow1sAs222221y3G7mv 12ThatWhich1sAboveAnd2222221vxkcEq ... - www.blockchain.com/btc/tx/237b50dac42af130171773b233954e62690182fd4901a453ad5d11d1d54a8ca3 en.wikipedia.org/wiki/The_Glass_Menagerie
11TomAppearsAtTheTopofTheXXWyM2Bt 11A11eyAfterEachSo1emnBoomXaBp7oy 11ofTheBe111nTheTowerHeXXXXVQaies 11ShakesALitt1eNoisemakeroraeWTgK ... - www.blockchain.com/btc/tx/1f9606f267cc398356663b14d1a7a3591e3da06572893394c14975a6fc11798f en.wikipedia.org/wiki/Philosophiæ_Naturalis_Principia_Mathematica
11Ru1e1WeAreToAdmitNoMoreXXazQ96z 11CausesofNatura1ThingsThanZAQ9ig 11SuchAsAreBothTrueAndXXXXXZyzfQp 11SufficientToExp1ainTheirXVSC2gY - tx ef374dcc5b23f16ecb0b1b639ba577d2acda7ad32321b5866db2fa9e6807b9c5 (2011-12-01) contains the intruction from the bitgoin.org website: web.archive.org/web/20210129054851/https://bitcoin.org/en/
11Bitcoin1sADecentra1izedXXWPM6Hs 11PeertopeerNetworkoverXXXXUkyy3M 11WhichUsersMakeXXXXXXXXXXXX4tQgN 11TransactionsThatAreXXXXXXVdZfnJ
The largest transactions in the Bitcoin Blockchain by Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01- bb41a757f405890fb0f5856228e23b715702d714d59bf2b1feb70d8b2b4e3e08 999,657 bytes. Joins a bunch of tiny inputs into a single output
- 623463a2a8a949e0590ffe6b2fd3e4e1028b2b99c747e82e899da4485eb0b6be and 5143cf232576ae53e8991ca389334563f14ea7a7c507a3e081fbef2538c84f6e both have 3,075 outputs of 1 satoshi each and a single input. We were not able to identify any meaningful data in it,
filejust saysdata, and there aren't long ASCII strings. However, the outputs were unspent as of 2021, which suggests that they might actually be data.
Analysis of some of them follows.
- dd9f6bbf80ab36b722ca95d93268667a3ea6938288e0d4cf0e7d2e28a7a91ab3 has 13107 with payload 256KB in size, but some of them at least have been spent: www.blockchain.com/btc/tx/dd9f6bbf80ab36b722ca95d93268667a3ea6938288e0d4cf0e7d2e28a7a91ab3 therefore it's not data.
filesays their payload is a DOS executable, but it must be a coincidence
Matrix congruence can be seen as the change of basis of a bilinear form by Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01From effect of a change of basis on the matrix of a bilinear form, remember that a change of basis modifies the matrix representation of a bilinear form as:
So, by taking , we understand that two matrices being congruent means that they can both correspond to the same bilinear form in different bases.
Some nice insights at: Robert Noyce: The Man Behind the Microchip by Leslie Berlin (2006).
International Organization for Standardization by Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-04 +Created 1970-01-01They are the finite projective special linear groups.
This was the first infinite family of simple groups discovered after the simple cyclic groups and alternating groups. The first case discovered was by Galois. You should understand that one first.
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