ArtirKel Profile Banner
José Luis Ricón Fernández de la Puente Profile
José Luis Ricón Fernández de la Puente

@ArtirKel

Followers
20K
Following
53K
Media
7K
Statuses
175K

Head of Theory at @RetroBio_ , enjoyer of things, blog: https://t.co/8xDYgWAJHB

San Francisco, CA
Joined April 2007
Don't wanna be here? Send us removal request.
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
@natematias @Miles_Brundage Rewards programme: Rewards paid:
5
1
50
@ArtirKel
José Luis Ricón Fernández de la Puente
3 months
Tweet media one
1
61
3K
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
TIL astrology is real, if you work in semiconductors
Tweet media one
56
290
2K
@ArtirKel
José Luis Ricón Fernández de la Puente
5 months
@Aella_Girl If you take all other labels in the chart either they are too specific ('came in aella') or very normie ('we contacted'). Also 'fluffer' is an intrinsically funny word that has high memetic potential.
11
3
1K
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Isn't it kind of weird that teeth grow twice? .No teeth (0) seems normal. Teeth once (1) seems also ok. Teeth all the time (Infinite) like in sharks also seems reasonable. Two (The default in humans) strikes me as a weird choice.
27
25
792
@ArtirKel
José Luis Ricón Fernández de la Puente
16 days
We are accelerating
Tweet media one
59
75
809
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Oh it's us!.
25
43
608
@ArtirKel
José Luis Ricón Fernández de la Puente
22 days
Our Applied AI team at @RetroBio_ + some @OpenAI homies working together for a few month have created GPT4b-micro, a sequence-based model for, among other things, protein design!.
15
52
568
@ArtirKel
José Luis Ricón Fernández de la Puente
1 month
Why we age in a nutshell:.1. You lose cells and some jobs go undone (like hair cells for hearing, beta cells for insulin, or even entire structures like teeth). 2. The cells that do remain do perform worse (largely epigenetic aging).3. The space between cells (the ECM) gets.
22
34
499
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
At dinner right now:.- can't eat pork, I'm Jewish.- can't eat chicken, because EA.- can't eat beef because Hindu.- can't eat tuna because mercury. But lamb brings us together.
31
14
468
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
A Thiel Fellowship, but to drop out of software and do something different.
21
34
471
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
So far I have found ChatGPT useful for coding, and not much more. Is this everyone's general view?.
208
10
441
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Trying the new OpenAI model.
Tweet media one
10
30
452
@ArtirKel
José Luis Ricón Fernández de la Puente
29 days
"NYC girls" are insane because they appear to be one of the most legitimately dangerous sources of relationships with the potential to gigafry your brain, but they are pursued exclusively by SF guys who unironically want to "go on a date" and basically get oneshotted by them.
24
8
441
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
The best possible news for a US immigrant like me 🗽🦅🚀
Tweet media one
69
4
423
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
Elon Musk's secret life goal: To show that markets are way more inefficient than we thought by repeatedly making tons of money doing what various industries have strong economic incentives to do but don't do (reusable rockets, 10x cheaper batteries).
9
19
409
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Post Oppenheimer, someone outside the theater says "But he didn't invent anything, he just told people what to do. well I guess he picked those that did".Indeed, the central thing of management. At worst, taking credit for other people's work. At best, dreaming into existence.
5
19
407
@ArtirKel
José Luis Ricón Fernández de la Puente
7 years
Probability of choosing STEM, SEH (Socsci&Humanities/Education/Health) and business, by SES and gender, in the US.
Tweet media one
24
154
340
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
There had been a longstanding debate in biosecurity circles whether one could synthesize smallpox from its sequence. One guy was like ayylmao and had it made (horsepox, as a proof of concept, protocol is the same for smallpox)
6
56
301
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
@jnymnz Tiny brain: Buddhism, stoicism.Galaxy brain: Dopamine fasting.
3
14
295
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
Basically everything that has ever been said in the "science is broken" conversation (with some baseline plausibility; disaregarding for now relative importances):
Tweet media one
26
38
260
@ArtirKel
José Luis Ricón Fernández de la Puente
8 months
@catehall Related to this, obsession can pass for correctness. At first,a flat earther seems to know more about how the earth curvature is measured and to some people seem very knowledgeable and thus right. A normal person has no reason to go deep into such matters so they seem less smart.
6
5
259
@ArtirKel
José Luis Ricón Fernández de la Puente
1 year
I have around 5000 PDFs and documents that I want to LLM through, what's the best current way?.ie I want to be able to ask things like "What do we know about X?" "Show me some documents that discuss Y" etc.
69
10
255
@ArtirKel
José Luis Ricón Fernández de la Puente
6 years
I'm looking at google street view pics of San Francisco and it's surprising how low density the housing is. Madrid and SF have similar areas (see pic), yet Madrid has almost 4x the population.
Tweet media one
25
33
229
@ArtirKel
José Luis Ricón Fernández de la Puente
1 year
Wow Sam went through the Steve jobs arc so fast. At an accelerated pace dareisay.
5
12
243
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
@tayroga Quotes naval on a date 🚩🚩🚩🚩🚩.
2
2
231
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
How it started (Feb 2020), how it's going (Oct 2021). Thanks @asterainstitute & @BuckInstitute for making it possible!.
Tweet media one
Tweet media two
24
19
240
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Tired: Covid was a Chinese bioweapon.Wired: Covid was orchestrated by the GMU Econ department to a) increase preparation for future serious, Spanish flu-tier pandemics and importantly b) increase economic growth by accelerating the transition to remote.
6
13
215
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
For a while everyone was like "But partial reprogramming has never extended lifespan in wild type mice". Now it has (As I expected it eventually would):
6
33
212
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
Cool-shit futurism (space colonization, moon telescopes, tech for the sake of tech to some extent) vs cozy futurism (urban reform, renewable energy, solving climate change; focusing on specific problems and having tech as an ends) are categories I've been thinking about recently.
19
20
207
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Today is my first day at @RetroBio_ !.Excited to join an amazing team working on therapies to extend healthy human life :)).
37
1
199
@ArtirKel
José Luis Ricón Fernández de la Puente
18 days
That's ~2% of US GDP right there!
@OpenAI
OpenAI
18 days
Announcing The Stargate Project. The Stargate Project is a new company which intends to invest $500 billion over the next four years building new AI infrastructure for OpenAI in the United States. We will begin deploying $100 billion immediately. This infrastructure will secure.
8
9
206
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Today I turn 30. Reply with life advice for incoming decade.
93
4
190
@ArtirKel
José Luis Ricón Fernández de la Puente
8 years
Has topology gone too far? .(via Mathematical Mathematics Memes)
Tweet media one
8
69
184
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
No sequencing? No problem! You can shoot lasers at cells and read their transcriptomes at a single cell resolution (ht @AlexandreTrapp ).
3
22
172
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
@marannelson @josaaay10 My TSA shitpost was when they asked me the "Why are you coming to the US" I replied "To make science great again", he loled and let me through.
3
7
151
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
The covers of Cell Metabolism are amazing
Tweet media one
Tweet media two
Tweet media three
Tweet media four
1
18
175
@ArtirKel
José Luis Ricón Fernández de la Puente
3 months
@bryan_johnson @Grimezsz @Liv_Boeree based and olive oil-pilled.
1
0
176
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
There's a gigabrain post to be written that starts from the observation that there are potential Feynmans trapped in Jane Street, continues with the suggestion that finance should be taxed and finishes arguing that that's the highest leverage metascience intervention.
17
13
174
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
Tweet media one
1
10
170
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
@micsolana Every non-billionaire is a policy failure.
4
11
164
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
I wrote an article for a new publication, @helloflink on the road towards beating aging and what deep changes it may involve to our lives looking far into the future.
9
23
156
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Tweet media one
Tweet media two
11
9
163
@ArtirKel
José Luis Ricón Fernández de la Puente
2 months
To the left, a room from the nicest hotel I've been to (Amangani, in Jackson Hole).To the right, what most hotels that try to be nice look like (Here, a Four Seasons). Obviously the former looks more cozymaxxed (ie correct) yet almost no hotel room (or room, in general) is like
Tweet media one
Tweet media two
27
4
162
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
@typesfast @bryan_johnson No, probably because it acts as an assassination market.
3
1
156
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Tweet media one
9
5
157
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Scaling tacit knowledge.
16
24
145
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Strong chad energy in this fire commander
Tweet media one
8
9
143
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
"Bringing the scourge back would probably take a small scientific team with little specialized knowledge half a year and cost about $100,000.".
4
5
135
@ArtirKel
José Luis Ricón Fernández de la Puente
8 months
@SimoneSyed Thing you have built " massive flex lol.
1
0
145
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
@webdevMason It's reaching levels of lol that wouldn't be believable if done for comedy reasons in a sitcom.
3
3
125
@ArtirKel
José Luis Ricón Fernández de la Puente
5 months
@kipperrii Yesss.
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
The 17 squares are not real they can't hurt u. The squares:
Tweet media one
1
3
135
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
@AlecStapp @elonmusk Because he made money out of it hah.
2
0
137
@ArtirKel
José Luis Ricón Fernández de la Puente
9 years
Tweet media one
0
61
125
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
The unreasonable effectiveness of doing, then thinking; vs thinking too much before doing.
7
14
130
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
To my taste, @dwarkesh_sp is probably the best podcaster there is right now. Both he and @tylercowen research their guests in depth and try to ask novel questions. But Dwarkesh is more serious about intellectual exploration (at the expense of cultural aspects).
7
7
131
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
@jnymnz Today we call that doing a PhD
3
1
130
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
@dr_alphalyrae 2 Tbsp olive oil is OUT.29573 uL olive oil is IN.
3
6
120
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Form I-140 approved today!! One step closer to the green card 🚀.Took ~ 11 months for an EB2-NIW.
18
1
131
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
@krishashok
Krish Ashok
5 years
Peak Japanese motivational poster
Tweet media one
2
19
121
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
After a year of working with the great team at @meet_aiden , followed by another year at @twitter (keeping and growing the same team!) post-acquisition, I'm leaving tomorrow and moving to SF in early November to -checks notes- make science great again. Exciting times!.
23
2
132
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Artificial wombs may sound weirdly dystopian but it's an equalizing and liberating technology which we should have.
@micsolana
Mike Solana
3 years
we’re not even close to full-term artificial wombs. the tech’s *theoretical* value prop is saving premies. if you’re worried about population collapse my suggestion is to have a baby.
Tweet media one
37
10
127
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
Yesterday @gwern opened my eyes to the great world of dedicated servers (Like Hetzner or OVH). Compared to AWS, these are approx 6x cheaper (For things like storing data, or hosting your own database with terabytes of data).
4
12
126
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Why is search on Mac hilariously bad? You're on a folder, search something (On Finder) and then it does a full disk search that somehow it manages not to find the file. WTF.
16
1
123
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
Ok, cashed out of $GME this morning. Farewell to our fellow cosmonauts headed to deep space for an uncertain voyage.
5
0
122
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
The Longevity FAQ.
8
24
114
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
GPT3 are u ok
Tweet media one
5
9
115
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Consider a parrot. Compare how likely you think a parrot is conscious* with how likely you think LLMs are conscious. A parrot will never be able to produce output like LaMDA. And yet the parrot is orders of magnitude more likely to be conscious. (*is a subject of experience).
10
14
117
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
@Tjdriii @catehall @sashachapin ABS: Always Be Sliding (into people DMs).
1
3
109
@ArtirKel
José Luis Ricón Fernández de la Puente
7 days
business plan? sir, we have the mandate of heaven.
2
11
121
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
What do researchers in the aging field believe? A survey
Tweet media one
5
26
107
@ArtirKel
José Luis Ricón Fernández de la Puente
1 year
@StuartJRitchie @hamandcheese The only real thing here is Stuart coming out as aphantasiac 🙃.
0
0
104
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
re that cancer cure, this is not the first time something like this happens. Killing multiple cancer cell lines while sparing normal cells is something that we've seen before with eg 6-thio-2'-deoxyguanosine or MR1 CAR-T. The hard thing is making it work in vivo, in solid tumors.
4
10
109
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
The perfect floor lamp hasn't been inven—.
Tweet media one
2
7
108
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
@juliagalef "Galef CONFESSED to her dislike of standard journalistic practice, sources closer to the author said".
3
0
109
@ArtirKel
José Luis Ricón Fernández de la Puente
18 days
@dwarkesh_sp Yeah; Yarvin's model works best if you have lots of tiny countries or even overlapping jurisdictions, where you could walk away. which used to be more common in the past, where some of his historical flavoring comes from.
12
3
112
@ArtirKel
José Luis Ricón Fernández de la Puente
1 year
[Marked safe from Forbes 30 under 30].
5
2
107
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
I recorded a podcast on longevity, fixing science and assorted topics, it's now available:.
7
18
108
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Related: I think this is why LLMs are for now overhyped. Software engineers are rightly impressed (as they use them day to day). Many others are like rightly unimpressed. But because a lot of the discourse comes from software land, it seems everyone finds them super useful (?).
9
5
106
@ArtirKel
José Luis Ricón Fernández de la Puente
2 months
The singularity starts when hordes of software engineers finally start their migration to where their brains are needed, the lower paying, more demanding (yet more meaningful) coal mines of hardware and biology. We have robots to teach and diseases to solve. It'll be glorious!.
8
5
108
@ArtirKel
José Luis Ricón Fernández de la Puente
3 months
Tweet media one
7
1
107
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
I have become one one with Twitter!.@meet_aiden has now been acquired by Twitter, making me a capital-t Tweep.
Tweet media one
Tweet media two
Tweet media three
16
3
106
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
What I'm working on now
Tweet media one
9
0
100
@ArtirKel
José Luis Ricón Fernández de la Puente
10 years
Tweet media one
0
123
97
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
@kulesatony DeepMind has teams competing with each other following different approaches to the same problem. There are leaderboards. Winning team absorbs the rest, then everyone works on the promising approach.
9
11
94
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Today in "WTF I can't believe that valuation", Linktree is valued at over 1.3bn dollars. For a link to a list of links.
6
4
95
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
The opposite is true! Programming is joyful because feedback is solid and fast!.
@devonzuegel
Devon ☀️
3 years
programming is frustrating because when your mental model is incorrect, feedback is fast and impossible to refute. other tasks are don't feel as frustrating because incorrectness doesn't punch us in the face like in programming — but that doesn't mean we're any less wrong 🙃.
5
7
96
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Tweet media one
14
2
94
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
This restaurant is spicy in multiple ways
Tweet media one
Tweet media two
Tweet media three
7
3
93
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Tfw you try to get GPT3 to solve aging
Tweet media one
4
8
95
@ArtirKel
José Luis Ricón Fernández de la Puente
8 months
I'm not a fan of boardgames and tried to figure out why. It seems to be some sort of uncanny valley situation where the situation is so close to something I like (having a great conversation with the people present) yet we are doing something else.
14
2
94
@ArtirKel
José Luis Ricón Fernández de la Puente
1 year
Get your blood tested randomly! Your doctor will not do this for you but it can be really helpful. I found out I was vitamin D deficient (and started supplementing). A while back I found out my blood iron was too high. I had assumed I got enough sun because Bay Area but wrong.
9
6
93
@ArtirKel
José Luis Ricón Fernández de la Puente
3 years
Tools for thought, half a century of trying to get adoption, half a century of failing. There's a need for a meta-literature on not how people decide, think, or remember, but on why they or do not adopt tools to help them do that. Retention remains a substantial issue.
Tweet media one
6
5
93
@ArtirKel
José Luis Ricón Fernández de la Puente
5 years
When I see someone writing their name as 'X, PhD' I reduce my prior somewhat that what they are about to say is true. Is this generalized?.
13
3
88
@ArtirKel
José Luis Ricón Fernández de la Puente
1 year
Telomeres: everything you always wanted to know.
5
14
90
@ArtirKel
José Luis Ricón Fernández de la Puente
4 years
Tweet media one
1
6
86
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Reminder that if you liked Jiro dreams of sushi you must watch juan likes rice & chicken.
5
6
87
@ArtirKel
José Luis Ricón Fernández de la Puente
8 years
The Pyramid of Economic Insight and Virtue, now in meme form. From .
Tweet media one
4
50
87
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Confused about what FROs are? I made a handy chart for reference
Tweet media one
4
8
84
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
@sineatrix Incredibly based tweet.
1
0
83
@ArtirKel
José Luis Ricón Fernández de la Puente
2 years
Probably the most SF injury possible is dropping a chonky tungsten ball on my finger
Tweet media one
8
0
85