straycat
david

https://brainSToRm.ninja

Pretty Good Freedom Tech
https://pgf.tech
neurologist and web of trust enthusiast

Public Key

npub1u5njm6g5h5cpw4wy8xugu62e5s7f6fnysv0sj0z3a8rengt2zqhsxrldq3

NIP-05 Address

david@bitcoinpark.com

Profile Code

nprofile1qqsw2feday2t6vqh2hzrnwywd9v6g0yayejgx8cf83g7n3ue594pqtcpzamhxue69uhkummnw3ezuendwsh8w6t69e3xj7svtrk6j

Publishing to

nostr.fmt.wiz.biz

Author Public Key

npub1u5njm6g5h5cpw4wy8xugu62e5s7f6fnysv0sj0z3a8rengt2zqhsxrldq3

Show more details

Last Notes

2024-11-19 12:46:27

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Haha it will be a bittersweet day! 🕺🏻🥹🤣

2024-11-19 12:23:58

GM all! ☕️ ☁️
First time in a while for me to get these done early.
#100aDayUntil100k
#100pushups
50 x 2 regular
day 291✔️

2024-11-14 23:07:00

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Once GrapeRank is sufficiently built out, it will be a good tool for curation of oracles

2024-11-11 18:58:15

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And @npub10np…tl5h has implemented the GrapeRank algo in go
https://github.com/Pretty-Good-Freedom-Tech/gvengine

2024-11-11 18:53:57

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And @npub1man…n9tn is polishing up his own independent implementation.

2024-11-11 18:52:17

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I am currently refactoring it to take advantage of neo4j, an open source graph database.

2024-11-11 18:48:13

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Nope. I’m still using GrapeRank, as per our previous discussions — a modification of PageRank that introduces a nonlinear term which means we can’t use the eigenvalue method, we must use the iterative method which is computationally more expensive, but not prohibitively so.

2024-11-10 22:54:29

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Depends on what you mean by WoT and what it is being used for. I usually think of “my WoT” as constructed out of my follows, their follows, their follows, etc (depends on how many hops away you want to go), and I use it to filter out spam. For this use case, it doesn’t matter whether i have any followers or not. Just because someone follows me doesn’t tell me whether that npub is a bot or not.

2024-11-10 22:43:45

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If a new user is following only one or a handful of npubs, seems like a solution that effectively pulls in their webs of trust (and merges or superimposes them) would work pretty well

2024-11-10 19:15:52

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Very cool - is this foss? I cannot find the link to the repo …

2024-11-10 15:42:16

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Anyone using a PageRank-like algo to rank results?

2024-11-10 15:39:56

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interesting, I’d like to check that out

2024-11-10 15:36:04

Imagine a nostr search engine.
Like Google keyword search, but for nostr.
Clean, simple UX.
How?
PageRank for pubkeys.
Why not?

2024-11-08 21:54:56

Look what I just bought from @npub16eu…t6jc ! I can’t wait to try them all out!
https://i.nostr.build/PiyxRmRJsvndOehO.jpg

2024-11-01 15:17:15

GrapeRank: PageRank for pubkeys

2024-10-31 22:47:12

#100aDayUntil100k
#100pushups
25 x 4 regular
day 272✅

2024-10-31 04:43:56

#100aDayUntil100k
#100pushups
40 x 5 decline
40 + 30 + 30 regular
days 269✔️, 270✅, 271✔️

2024-10-28 03:37:21

#100aDayUntil100k
#100pushups
40 decline
40 x 3 incline with weights
40 decline
days 267✔️, 268✅

2024-10-25 19:10:01

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Freedom technology is our only way out.

2024-10-25 19:09:00

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btw, I very highly recommend Narcos and Narcos:Mexico. They lay it all out, that the War on Drugs is nothing more than an excuse to prosecute endless war, weaken our frenemies (central and South America), keep our archrival the Russian Empire (formerly known as the Soviet Union) out of our hemisphere, and launder money. The most interesting observation to me is that the DEA agents seem to know this at some level, and yet they remain TRUE BELIEVERS to the cause, ie the war on drugs. Without the zeal of the True Believers, the entire scheme described above would fall apart.
Why do they Believe? That is the question.

2024-10-25 19:00:29

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I think Assange was correct when he said years ago that the goal of the war in Afghanistan was not to win the war, but to launder money. How does that work, exactly? If I had to guess, I’d put poppies at the top of my list.
And what are the odds that we accidentally left $80 billion of military equipment to Afghanistan? Oops!! 🤪
And how many billions did Biden confiscate from the Afghani central bank? Could that have been part of the deal? It’s hard for me to imagine anything otherwise.

2024-10-25 04:15:27

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Have you seen Narcos:Mexico? In season 2 the head of the drug cartel in Mexico is about to be indicted in the US so he sets a meeting with a CIA guy and says hey, you know that Iran contra stuff that’s all over the news? Looks like Reagan can’t run guns anymore. Well guess what? I have a fleet of planes. I can run your guns. All you gotta do is make the indictment go away. And it worked.

2024-10-25 03:59:39

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Keep noting it! 💪🏻👏🏻🔥

2024-10-25 03:58:48

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Keep it going! 👏🏻 💪🏻🔥

2024-10-25 03:52:12

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50 decline 👏🏻 💪🏻🔥

2024-10-25 03:49:37

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Can’t skip leg day!! 🦵💪🏻🔥

2024-10-25 03:47:06

#100aDayUntil100k
#100pushups
50 x 4 regular
days 264✅, 265✔️

2024-10-24 15:28:49

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Nice!

2024-10-23 00:01:47

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nostrudel maybe

2024-10-22 16:21:20

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Haha yup

2024-10-22 15:54:16

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🎯
BCH all over again
But they (some of them) might be smart enough to know their plan to dump the real stuff won’t result in BBTC dominance. Probably, the BTC buyers will be their frens who know they’re getting a good deal.

2024-10-20 00:05:26

#100aDayUntil100k
#100pushups
50 + 50 regular
day 260✅

2024-10-18 02:17:12

#100aDayUntil100k
#100pushups
10 diamond
50 + 40 regular
day 258✅

2024-10-17 04:19:15

#100aDayUntil100k
#100pushups
40 x 3 incline with weights
40 x 2 regular
days 256✅, 257✔️

2024-10-15 04:12:41

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👏🏻 💪🏻🔥

2024-10-15 03:57:24

100aDayUntil100k
#100pushups
60 + 40 decline
day 255✔️

2024-10-14 02:10:06

100aDayUntil100k
#100pushups
40 + 30 + 30 decline
day 254✅

2024-10-13 15:41:55

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I had to look up what that is — pretty awesome! You’re inspiring me to start adding some pull-ups and/or squats into my routine. 😃🏋🏻‍♂️

2024-10-13 03:46:29

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Nice 💪🏻

2024-10-13 03:44:50

#100aDayUntil100k
#100pushups
25 x 4 regular with a few minutes between intervals, interspersed with some sun salutations and other stretches
days 253✔️

2024-10-12 03:55:04

#100aDayUntil100k
#100pushups
did a few extra to cover the last 2 days
30 regular
40 regular
50 x 3 regular
days 251✔️, 252✅

2024-10-12 03:16:18

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Keep it up! 👏🏻 💜

2024-10-09 23:46:22

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KILLING IT WITH DECLINE DIAMOND 💎 🔥💪🏻💎🔥💪🏻

2024-10-09 23:43:55

#100aDayUntil100k
#100pushups
40 x 3 incline with weights
but then I decided incline aren’t good enough for day 250, so I did some more
5 right arm
5 left arm
20 diamond
30 + 40 decline
day 250✅

2024-10-09 01:30:57

#100aDayUntil100k
#100pushups
25 regular
10 diamond
65 regular
day 249✔️

2024-10-08 04:17:21

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Yup. Form could probably use some work lol

2024-10-08 03:41:20

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DAY TWO FIFTY 💪🏻💪🏻💪🏻👏🏻👏🏻👏🏻🔥🔥🔥

2024-10-08 03:40:07

#100aDayUntil100k
#100pushups
5 R arm
5 L arm
70 + 20 regular
day 248✅

2024-10-07 00:27:05

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Decline diamond! 🔥🔥🔥💪🏻

2024-10-07 00:25:14

#100aDayUntil100k
#100pushups
40 decline
60 regular
day 247✔️

2024-10-06 03:41:15

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Impressive!

2024-10-06 03:38:34

#100aDayUntil100k
#100pushups
50 x 2 regular
day 246✅

2024-10-06 03:36:38

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WOOT WOOT!!!
💪🏻🔥✔️👏🏻💪🏻🔥✅

2024-10-05 16:49:41

Worldviews will provide a big-picture overview of how your grapevine thinks.
https://i.nostr.build/pwUDJ5z1v8XP8ceI.png
https://i.nostr.build/3GqkKQIj2aTzGcjF.png
https://i.nostr.build/nrTIvPMIpdEhkV6D.png

2024-10-05 02:04:46

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I love my declines 😄

2024-10-05 02:00:51

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You gotta start hashtagging it man so we can share the love 💜
💪🏻💪🏻 #100pushups

2024-10-05 01:51:01

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Here’s to a speedy recovery! 🍻

2024-10-05 00:42:58

#100aDayUntil100k
#100pushups
30 x 2 decline
40 regular
day 245✔️

2024-10-04 03:50:54

#100aDayUntil100k
#100pushups
catching up for 3 days
50 x 6 or 7 regular
days 242✅, 243✔️, 244✅

2024-10-01 03:57:07

#100aDayUntil100k
#100pushups
25 x 2 decline
50 regular
day 241✔️

2024-09-29 22:08:48

#100aDayUntil100k
#100pushups
40 x 3 incline with weights
did a few extra
day 240 ✅

2024-09-29 03:38:25

#100aDayUntil100k
#100pushups
50 x 4 regular
days 238 ✅, 239✔️

2024-09-29 00:27:02

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ndk-sqlite-cache 👏🏻

2024-09-27 12:32:34

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GM! ☁️ ☕️

2024-09-27 03:51:29

#100aDayUntil100k
#100pushups
50 x 2 regular
day 237✔️

2024-09-26 04:02:27

#100aDayUntil100k
#100pushups
35 + 30 + 35 + 50 x 2 regular
days 235✔️, 236✅

2024-09-25 15:26:37

The Grapevine WoT Score is going to be extraordinarily useful for situations like this. Currently being rebuilt.
#Wot
#grapevine #note1rnw…lppv

2024-09-25 03:41:22

🎯
“No global source of truth” is one of those deep principles with far reaching implications.
I call it the “principle of relativity for web of trust” in this article from about 9 years ago.
https://github.com/WebOfTrustInfo/rwot1-sf/blob/master/Principle-of-Relativity-for-WoT.md #note1ypt…wtcd

2024-09-25 03:34:30

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And Ten31 has two funds that are currently open to prospective investors
https://ten31.vc/funds

2024-09-25 03:32:30

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btw @npub14py…zd6m has offices in @npub1the…4dha in Nashville and Bitcoin Commons in Austin

2024-09-25 03:28:37

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Also check out @npub1sn0…tr2x ‘s Recursive Capital, early stage bitcoin VC fund in Africa

2024-09-25 03:25:53

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If you look at low time preference funds I and II, according to https://ten31.vc/funds:
LTM 1 deployed $5M for 12 companies
LTM 2 deployed $125M for 28 companies
So those investments per company (my calculations) comes to $400k (fund 1) and $4.5M (fund 2) per company — pretty hefty numbers!
(pre-seed through series B are all lumped together; idk the breakdown)

2024-09-25 03:13:10

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Ten31.vc

2024-09-25 02:51:32

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I think I said that wrong; the activation function of neural networks doesn’t multiply the weighted sum by the sigmoid function; it uses the sigmoid function to map the weighted sum onto an interval.
But the main point remains, which is that it is nonlinear.

2024-09-25 02:37:09

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And here’s a blog post about the GrapeRank equation; so named for the sake of comparison to PageRank, which is linear, unlike GrapeRank and neural networks which are nonlinear
https://habla.news/u/david@bitcoinpark.com/1725006462512

2024-09-25 02:25:30

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Here’s a little primer on neural network math
https://youtu.be/aircAruvnKk

2024-09-25 02:25:02

grapevine math and neural network math are more similar than I had thought
Similarity: Both make use of a weighted sum.
Difference: Grapevine equation divides by the sum of weights (since it’s a weighted average), something you don’t do with neural networks.
Similarity: Neural networks multiply by the sigma function; the grapevine multiplies by a function that maps weights onto confidence. Both functions are nonlinear.
Difference: neural networks have a ‘bias’ parameter which does not show up in the grapevine equation.

2024-09-24 02:38:27

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I have two modes: “good enough” form and “really really good” form. Usually I do good enough. Not sure if I can do 50 really really good ones or not …

2024-09-24 02:33:58

#100aDayUntil100k
#100pushups
50 x 2 regular
day 234✅

2024-09-23 02:56:09

There’s no name for the category of Schelling point that I’m talking about — but it should have one, imho.
a decentralized-protocol Schelling point?
a minimized-complexity Schelling point?
🤔
Any ideas?
#asknostr #note1299…4ske

2024-09-23 02:50:10

Hypothesis: the schelling point for a decentralized protocol is the *most simple version* of that protocol that will get it off the ground.
3 examples:
1. Decentralized money (bitcoin)
2. Decentralized social media (nostr)
3. Decentralized web of trust (?)
What does “simple” mean? What does “off the ground” look like? These are challenging questions to answer. And very different for each of the above scenarios.
But challenging != intractable. The game is afoot.

2024-09-23 01:03:41

#100aDayUntil100k
#100pushups
50 x 2 regular
day 233✔️

2024-09-22 21:04:43

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🎯
NIP-05 is not perfect, but it is very useful, as you correctly point out.
No single spam prevention tool is ever going to be perfect. Luckily, LOTS of tools exist. Let’s learn to use them all.
Abundance mentality.

2024-09-22 20:42:12

In the fiat world, content curation is handled by whichever platform you’re on. On Facebook, Mark Zuckerberg is the final arbiter of every category of content available on the platform. He may not make the selections personally, but the buck always stops with him.
Is there a box that says I select Zuck to be the final arbitor of every piece of content, no matter the category? Of course not. Why not? Because Facebook has no economic incentive to provide users with decentralized solutions to content curation. On Facebook, no other options exist.
Some will say that decentralized content curation is technologically impossible. But technology has never been the problem. It’s the economic incentives that are the problem.
Nostr provides the economic environment that we need to build the tools that don’t yet exist. Not bluesky, not anything else. Nostr. It’s not perfect, but it’s enough for now.
I think we can all feel it: Nostr is the crucible in which the technology of decentralized content curation will be forged.

2024-09-22 20:06:29

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I’d like users to have tools that enable choices like the ones you describe.
One thing I’d add: I want users to get into the habit of thinking about WHO implements the above preferences. The fiat world trained us hard not to do that. We’re going to have to learn a new habit, which is selecting WHO makes decisions and in what context.
Of course, it must not be overburdensome just to get started. If a new user wants to select just one trusted npub to oversee curation in all contexts, that should be an easy, one-click way to get started using nostr. Effectively, the new user would “inherit” all preferences from that one selected user.
After that, our tools should enable users to make incremental improvements. Want more (or less) of content A, with its curation overseen by npub A’? Done. Customization, one step at a time.

2024-09-22 19:12:13

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🎯
Here’s the question: what does the feed look like when the new user’s follow list goes from 1 npub to 2, 3, 5, 10, 100, etc? Do you change a setting so your feed switches from your follows’ webs of trust to your web of trust?
Ideally the transition would be smooth, without the need for the new user to change any settings. It just so happens that the Grapevine WoT Score does exactly that: it solves the problem that you describe for the brand new user + it provides a smooth transition with no need for any confusing setting changes.

2024-09-22 03:52:04

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That’s an impressive combo 💪🏻
And on day 200!!! 👏🏻

2024-09-22 03:47:45

#100aDayUntil100k
#100pushups
40 decline
40 x 4 regular
days 231✔️, 232✅

2024-09-21 20:23:24

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My most recent implementation is at grapevine.my (which will take you to brainstorm.ninja), which will output your Grapevine WoT Recommendations List in NIP-51 format which you can play with using other clients. It’s all FOSS, and you can link to the GitHub repo at brainstorm.ninja. But the calculations are all front end and I discovered it’s too much for the browser to handle. It’s also not as modular as it should have been. So right now the whole project is being broken up into modules and rewritten to execute on the back end. This is being done using a new GitHub account, me + @npub1man…n9tn + @npub10np…tl5h all working on together — it’s private now, still in very early stages of development but we’ll make it public soon.

2024-09-21 19:31:32

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WoT relay? 🤔
Web of Not Spam Relay 😍
WoNS
I like it
👏🏻

2024-09-21 17:05:55

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The WoT relays of today calculate your WoT using follows, as you correctly point out. It’s very useful, but it’s imperfect for exactly the reasons you point out.
The path forward will be to calculate WoT using a more diverse range of raw data. Follows, mutes, reports, zaps, reactions, etc etc. Which may sound too complicated to work. But this is how the grapevine works. In principle, ANY source of data can be converted into a format that allows it to be consumed by the grapevine algorithm. Different data sources can be combined in different ways to come up with different GrapeRank scores which can be used for a variety of purposes. One score will be used to decide who can post to your WoT relay. Another score will be used to determine who you trust to curate a list of trusted ecash mints. And so on.

2024-09-21 16:53:35

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This is one of the many design principles of the #grapevine, btw.

2024-09-21 16:51:34

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The seed user, i.e. the “authority,” is you.
YOU are at the center of YOUR #WoT.
THIS IS THE ONLY WAY IT WILL EVER WORK.

2024-09-20 15:34:29

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GrapeRank scores are designed so that one set G of scored items can be used to curate another set G of scored items. In this figure, we use follows and mutes to curate a list of not-bots, which is used to curate a list of oracles, which is used to curate a list of items.
https://i.nostr.build/c8IQY6tHGA2aSsTG.png

2024-09-20 15:30:15

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Right now at brainstorm.ninja all the calculations are done in the browser. Turns out that’s more than it can handle. So we’re breaking it up into modules and doing most of the calculations on the backend.
R is a table of GrapeRank-formatted ratings that can come from any source whatsoever. G is a list of items that have been scored using the GrapeRank algo.
https://i.nostr.build/TtZ2ByM3KJsyL17r.png

2024-09-20 03:36:40

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Welcome back! 💪🏻

2024-09-20 03:34:54

#100aDayUntil100k
#100pushups
30 regular
40 decline
30 regular
day 230✅

2024-09-19 04:24:01

Narcos and Narcos: Mexico, both on Netflix, are both such extraordinarily well-done shows. Well written, well paced, well acted. Truly some amazing performances.
And such important stories to tell. True stories involving the major players in the war on drugs, focusing for the most part on Columbia and Mexico. A central theme: everything that the DEA is trying to achieve is sabotaged by the CIA, the State Department, the DOJ. To what end? They don’t make that as clear as I wish they had. They do make it clear that the Cold War is part of it, but the state interests we’re supposedly pursuing after the fall of the Soviet Union isn’t really addressed in either show.
To me, these stories illustrate the pathologies inherent to the centralization of power. They are the stories that tell us why freedom tech matters.

2024-09-18 23:50:28

#100aDayUntil100k
#100pushups
30 diamond
40 decline
30 regular
day 229 ✔️

2024-09-18 16:24:23

This is exactly right. There will be many strategies and lots of solutions to the problem of spam. Each will have its own tradeoffs. Sometimes, the optimal approach may be to combine multiple solutions into a single meta-solution.
So in general, if you’re a big proponent of one anti-spam solution, it doesn’t mean the others have no place. #note12dd…xz5k