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izz ✝️

@izzp_

builder of things, follower of Christ

Naples, FL Katılım Ocak 2013
189 Takip Edilen73 Takipçiler
@levelsio
@levelsio@levelsio·
You and me when Anthropic extended Fable access for another week
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ClaudeDevs
ClaudeDevs@ClaudeDevs·
We've reset 5-hour and weekly rate limits for all users.
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Claude
Claude@claudeai·
We're extending access to Claude Fable 5 on all paid plans through July 12.
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Bryan Johnson
Bryan Johnson@bryan_johnson·
Bad news #1: I have an autoimmune disease. My stomach is eating itself. Bad news #2: 2–5% of people have this, too. Likely more, because it hides. Good news: I'm going to try and solve it. Will share all. As a kid, I ate sugar cereal, drank sugary soda, and gobbled down fast food. I had a few healthy years in my early 20s but then became a young father of three and began building a business. Juggling that stress and grind, I let my health slip and gained 40 lbs. Within a few years I’d fallen into a deep, chronic depression. Somewhere in that timeline, my body began developing an autoimmune process affecting my thyroid and then my stomach lining. It’s called Autoimmune Gastritis (AIG). My hypothyroidism got diagnosed when I was 21 years old with a routine blood draw. That enabled me to begin proactive management, supplementing levothyroxine and Armour Thyroid. They are the hormones my body should be producing on its own but wasn’t. By taking these pills daily, my body was able to operate as though my thyroid was functioning properly. What I didn’t know was that something else was going on inside my body: my stomach had begun attacking itself. But there was no routine test to find out and I didn’t have any symptoms. I just discovered it in May. I'm unsure how long I've had it. AIG causes irreversible damage: nutritional deficiency, anemia, and over a long horizon, elevated cancer risk. When AIG is discovered today, standard medical care concedes defeat, stating that nothing can be done except managing the condition, no matter how awful or lethal the effects. Looking back over the past few years, I can now see the early signals we were picking up in measurement but hadn’t connected the dots. For 11 years, I’ve had low ferritin, without anemia. We continually tried to raise my iron levels with food and supplementation but nothing would work. We chased the obvious solutions first. A plant-based diet means all my iron is the hard-to-absorb, non-heme kind. Hard training, sauna, and hyperbaric oxygen all raise the body's demand for iron. But none of them explained the core failure: despite me taking iron orally, trialing every formulation, and using every timing trick, none of the iron would stick. What I didn’t fully appreciate until recently is how many stones my previous providers had left unturned. The low ferritin kept getting explained away but not fixed. I overhauled my medical team earlier this year. It was the rebuild to lay the groundwork for Immortals Care, our $1M a year protocol. With greater capacity, we revisited everything. On the surface, my low ferritin was easy to dismiss by most standards of care. My hemoglobin and hematocrit were normal. Ferritin measures stored iron, while hemoglobin measures circulating iron, and because the body drains its reserves first to keep hemoglobin normal, you can be fully iron deficient with a perfectly normal hemoglobin and hematocrit. This is why my low ferritin kept getting dismissed: the numbers that define anemia looked fine, so no one asked why my iron reserves wouldn't refill. My team pressed on that question. They first turned to a colonoscopy. I was 48 years old and overdue. It was good health hygiene to have while also serving a specific purpose of searching for a hidden source of blood loss such as a polyp or even cancer in my bowels. Either one of those would be an explanation of why the iron kept disappearing. At the same time, they began connecting the dots. Iron absorption depends on stomach acid, so one theory was that my stomach acid was disrupted. They also knew that thyroid and stomach autoimmunity often travel together, so often that the pairing has a name: thyrogastric syndrome. Put against my 27+ year history of autoimmune thyroid disease, the pieces pointed to a single hypothesis: my own immune system was attacking my stomach. To our surprise, my colonoscopy came back clean. A perfectly healthy colon, better than 95% of colonoscopies of men, according to the gastroenterologist. That ruled out the first concern and worst possible outcome: slow continuous bleeding from colon cancer, or pre-cancerous polyp. My team had exercised great foresight though, anticipating this possible outcome. In addition to a colonoscopy, they’d ordered an upper endoscopy to be performed at the same time. The combined procedure is a bi-directional endoscopy. Probes would look at my entire intestinal tract, up from below and down the throat. Additionally, we had several blood biomarkers measured ahead of the procedure to try and pick up on any signals that would give the gastroenterologist guidance for what to look for while doing visual inspections. Fifteen minutes before the procedure, my blood results returned, finding elevated levels of anti-parietal-cells-antibodies (APCA). They came back at roughly five times the upper limit of normal (103, against a ceiling of 20 Units/mL). It was a positive result confirming the suspicion of AIG being the culprit behind my low ferritin, the other type of gastritis, driven by a bacterial infection, was already ruled out, as we knew I am negative to H. pylori. Even before this finding, my team had ordered five biopsies to be taken from three regions of my stomach. The biopsies were the critical piece. Had they not been ordered, the bi-directional endoscopy would have been completed and AIG remained undiagnosed as there were no visual signatures of the condition in my intestines. Two days later, the results of biopsies came in, showing clear signs of early autoimmune gastritis: early atrophy confined to the acid-producing lining, with the rest of the stomach still spared. My team had anticipated this, methodically tracing every line of evidence. We now had a formal diagnosis. I have autoimmune gastritis AIG. My stomach is eating itself. So this was never one problem. It was three, linked to one another: the iron deficiency, the autoimmune gastritis driving it, and the autoimmune thyroid disease alongside it. Iron and thyroid feed each other both ways, low iron impairs the conversion of thyroid hormone into its active form, and an under active thyroid impairs how the body uses iron. Each made the other harder to fix. Autoimmune gastritis affects an estimated 2–5% of people, and likely more, because it hides and is challenging to diagnose. It's usually silent for years, surfacing only once the stomach has atrophied enough to do real damage: iron deficiency first, then B12 deficiency, then anemia from both, and over a long horizon, raised stomach-cancer risk. In one study of people with precancerous gastric lesions, roughly 18% carried the autoimmune antibodies, and only about 1% had ever been diagnosed. And the earliest clue, low ferritin, is the one standard medicine waves through. Low iron stores get normalized and rarely investigated at all when anemia hasn't shown up yet. That blind spot is what hid mine for a decade. The good news: the iron deficiency is now corrected. I received a 1,000 mg Monoferric iron infusion. This was chosen for two reasons after considering multiple formulations. First, it can safely deliver a full dose of iron in a single infusion (1,000 mg), while older options like Venofer require several separate appointments to reach the same total. Second, certain other IV iron formulations can cause a drop in blood phosphate levels, an important mineral for bones and energy. Monoferric is much less likely to do this, which matters given how closely we track long-term metabolic and bone health parameters. As mentioned earlier, current medical standards treat AIG as something to be managed, not resolved. It's worth noting that many of you give me a hard time, inviting me to "live life" and engage in self-destructive behaviors like a "normal person". I'm cool with the playful ribbing. Also, had I not taken care of my health during the past five years, my situation could potentially be very serious. You too may have a lurking health issue that is undiagnosed and could increase in severity from unhealthy life choices, without your knowing. The absence of symptoms is not the presence of health. A gentle nudge that minding your health, no matter your situation in life, is good decision making. My team and I are going to try and solve my AIG. This is how we’re approaching it: First, routine monitoring keeps the disease in view: ferritin and iron, B12, the pepsinogen I/II ratio, gastrin, and chromogranin A. Gastrin is the dial to watch. If it climbs, the disease is advancing, and the risk of gastric neuroendocrine tumors climbs with it. Second, we’re doing advanced characterization of the disease. We’ll do a repeat biopsy to read the immune infiltrate, deep cytokine profiling, and T-cell subset analysis, to see which pathways are actually firing. That testing drives the intervention plan, including the experimental approaches we intend to develop. + If gastrin and chromogranin rise: damp the gastrin drive (netazepide) and tighten endoscopic surveillance. If the profile is Th1 / interferon-driven: target JAK/STAT. + If it's Th17 / IL-17-driven: target IL-17 and STAT3. + If regulatory T cells are failing: rebuild them (low-dose IL-2, induced Tregs). + If it's antibody- and B-cell-driven and antigen-specific: engineered cell therapy (CAAR-T). Which organizes into four tiers, from available today to frontier: Tier 1, now: protect and support; zinc-L-carnosine, and acid replacement (betaine HCl with pepsin) under physician supervision. This is specific to my case and not something to self-prescribe, especially given the cancer-surveillance considerations above. Tier 2, target the signaling , JAK/STAT, GSK-3, IL-17, and damp the gastrin drive (netazepide). Tier 3, reset the cells, induced regulatory T cells (iTregs). Tier 4, frontier: engineered T-cell therapy (CAR-T / CAAR-T), custom AI-designed antibodies, or synthetic proteins, that can specifically seek out inactivate or destroy the rogue immune cells attacking my stomach lining. To be clear: there's no approved cure for autoimmune gastritis today. Medicine treats it as something to manage, not solve. Tiers 2 through 4 are investigational preclinical evidence at best, and in several cases therapies that still have to be built. If you're working on autoimmune gastritis, antigen-specific tolerance, regulatory T cells, or CAAR-T for organ-specific autoimmunity, please reach out. Modern medicine has normalized too many conditions that erode our health, function, and comfort, shrinking the goal to monitoring and management while a cure is rarely even attempted. Most of these verdicts were handed down decades ago, in an era that predates nearly all of our current tech and science, and they have gone largely unchallenged. We want to change that. In the age of AI, multiomics, and custom-built DNA, proteins, and cells, no condition should be presumed incurable simply because no one has yet tried to cure it with today's stack. I’ll end on a personal note. We fill our days mostly on things that are trivial next to what we ultimately care about. We know, deep down, however, that in the noise of it all, health is easily forgotten until it’s the only thing that matters. We spend a fraction of our lives truly sober to the preciousness of life. We feel it when someone we love dies, when a child is born, when we come close to death ourselves, or when a diagnosis marks our limit. In those moments, we are sobered, and the rarity of it all becomes self evident. Imagine the existence we’d build together if that clarity didn’t fade. I wish all of you the very best. Care for yourself, care for others, care for the planet and care for our animal friends. Care for life as it’s the most precious gift there is.
Bryan Johnson tweet media
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Bryan Johnson
Bryan Johnson@bryan_johnson·
The Midjourney scanner is revolutionary. There’s a bullish case that exceeds the most optimistic takes. I was at the unveiling and used the scanner myself. I personally want to experiment with a weekly whole body Midjourney scan to add to my 1.5 billion data points and let my AI and doctors start connecting the dots. Most of the early commentary has focused on the wrong questions: “is it as good as MRI?” and “what about false positives?” These are legitimate concerns, but they miss the bigger shift. The more important question is: what does fast, low cost, safe whole body imaging unlock? Let’s start with measurement. A speedometer tells you how fast you are going. A fuel/battery gauge tells you when to stop. A thermostat tells you what to wear. The stock price tells you how much money you’ve made or lost. We measure what we care about. Except, oddly, for our bodies, which are among the least measured things in our lives. Most people have more data on their favorite sports team, bank account, and social media performance than their body. The future will think we were crazy for this. The first law of medicine is to do no harm. Our current system has harm baked into it. + an undiagnosed condition progressing silently is harm + a doctor who can’t easily get a patient screened preventively is harm + having no baseline to compare against when something shows up is harm Our preventive net is narrow and inconsistent. Late stage diagnoses that could have been caught earlier remain common. Midjourney’s technology won’t eliminate that overnight, but it points toward a future where routine wholebody baselines become normal rather than exceptional. Midjourney can help flip harm-by-default into a new expectation for our health infrastructure: almost no one will ever again be blindsided by a late-stage, life-threatening diagnosis that could have been caught earlier reasonably and cost-effectively. Some examples of what earlier structural visibility enables: + breast cancer caught while localized has a ~99% five year survival rate. Once it has spread distantly, that drops to around 32%. + an abdominal aortic aneurysm kills more than 8 in 10 people when it ruptures. A single ultrasound finds the aorta in 99 percent of people, and screening cuts aneurysm deaths by a third to a half. Midjourney’s technology will not do it all on its own. Its full angle, water immersion approach works around bone rather than seeing through it, and routes bowel gas to image the full abdominal cross section. Yet two real limits remain: air filled lungs stay a blind spot even here, and the brain is out of reach behind the skull, beyond the torso and legs this scanner covers. That is fine, and they may improve these areas over time. Midjourney doesn’t need to do it all in order for it to be one of the biggest things to hit medicine in a long time. Let’s look at where specifically Midjourney may be useful to each of us. We’ll start with where we get data today: 1) Blood draws tell us what is happening chemically. 2) Wearables tell us how the body is functioning. 3) Imaging tells us what is happening structurally. The third layer, soft tissue, is the one we have never been able to access easily. MRI is great, but it is expensive, intimidating, and slow. Midjourney's technology excels with soft tissue. Here are three places it could be game changing. There are many more. 1. Metabolic health - fatty liver is one of the earliest structural signs of metabolic dysfunction. It’s strongly linked to insulin resistance, type 2 diabetes, and cardiovascular risk. Being able to track visceral fat, muscle fat infiltration, and liver fat over time could give a much clearer picture than blood markers alone. Over 88% of Americans are metabolically unhealthy. 2. Endocrine tissue - the same metabolic patterns often cluster with thyroid issues, PCOS, and hypogonadism. Ultrasound can directly image the thyroid and ovarian structures. Fat tissue itself is an endocrine organ, so tracking it structurally adds another useful data layer. 3. Soft tissue + multiomics - new proteomic aging clocks can already predict risk for many chronic diseases from blood proteins. These molecular models could become significantly more powerful when combined with actual structural imaging data. The two are complementary, not competitive. The real advantage: baseline + longitudinal tracking The biggest unlock isn’t a single scan. It’s having a baseline followed by regular follow-ups. A one off scan in a moment of concern turns every finding into a potential crisis. Without context, you have no idea whether something is new, stable, or changing. With baseline + repeated measurement, the question changes from “what is this?” to “is this changing?” Most incidental findings stay stable. The dangerous ones tend to grow or evolve. Trajectory is often more informative than any single image or timepoint.This is why false positives become more manageable with frequent, low-friction imaging. Midjourney has a difficult road ahead. Building robust, clinically validated medical hardware and software is extremely hard. Regulatory, technical, and adoption challenges shouldn’t be understated. Also, David is doing this for the right reasons and he’s well positioned financially to push through the difficulty. On the horizon We are moving quickly into a future where we will have continuous biological measurement. It will be all around us, a lot of it invisible and autonomous. Measurement will be in our gyms, beds, homes, clothing, offices, cars, glasses, and wearables. It will also be inside of us, in tissue and circulating in our blood vessels. This moves us from managing crises to preventing them. But this future will not just show up. We need bold builders like David and his team, willing to do the hard work.
Midjourney@midjourney

A technical dive inside our new "Midjourney Scanner"

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izz ✝️
izz ✝️@izzp_·
@levelsio Brickell area is nice if you can get past the larping
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@levelsio
@levelsio@levelsio·
Any hotel recommendations for Miami? Last time we stayed at South Beach that was nice, now maybe North Miami / Bal Harbour is that nice?
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Midjourney
Midjourney@midjourney·
We're gonna do a Midjourney Medical AMA (ask me anything ) right here all afternoon. Post your questions below and we'll try to answer as many as we can! ❤️
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Martin Shkreli
Martin Shkreli@MartinShkreli·
oral CD38 inhibs from $ABBV
Martin Shkreli tweet media
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Martin Shkreli
Martin Shkreli@MartinShkreli·
Brian, for the love of god, you cannot take a health database, click 'sort' and think that the top 5 drugs patients who survive longer happen to be taking are causal to the benefit those patients received. 500k is actually not a large cohort for a database, needs alpha correction, was very unlikely to be prespecified, etc. that's why no one is impressed with these studies and they're published in trash journals. this study showed a slight increase in CV events with PDEs vs placebo pubmed.ncbi.nlm.nih.gov/14529061/ the mechanistic rationale is not there and your explanation is terrible. ALL PDEs metabolize cAMP/cGMP, thats why they are phosphodiesterases. are you suggesting we should inhibit all PDEs?! by the same logic we should all be taking ERAs too. why not ARBs and ACEs? screw it i'll take inhaled treprostinil too. might extend my life. then i'll run SQL queries on health databases until i see a 'signal', bonferroni may roll in his grave but i will be vasodilated.
Bryan Johnson@bryan_johnson

The strongest evidence for tadalafil as a longevity candidate is large scale observational. In a propensity matched cohort of 509,788 men with erectile dysfunction, tadalafil over 3 years was associated with 34% lower all cause mortality, 32% lower dementia, 27% lower MI, and 34% lower stroke. Supporting cohorts show the same direction, including a dose dependent gradient: in higher risk men the top PDE5 inhibitor exposure quartile reached a mortality risk reduction of 49%. For a drug discussed as “longevity medicine,” that is close to the ceiling of current human evidence. No drug, tadalafil included, has a completed RCT with lifespan or healthspan as the primary endpoint, so observational signal on hard endpoints is the best the field has, and tadalafil’s is unusually large and consistent. The mechanism is also coherent. PDE5 inhibition raises cGMP, improves endothelial function and NO signaling, and the cardiovascular event data line up with that pathway. That supports causal plausibility for the vascular benefit, though it does not establish a lifespan effect. Disease specific and healthy user bias cannot be ruled out. The disease specific part: ED is itself a sign of vascular disease or dysfunction, which tadalafil’s mechanism can help directly. The healthy user part: wanting to maintain a healthy sex life in older age is a marker of relatively good health. None of this is a recommendation to take tadalafil on your own. It should follow from your individual health and biomarker profile, and only under specialized physician advice and oversight.

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Andrew D. Huberman, Ph.D.
Andrew D. Huberman, Ph.D.@hubermanlab·
The new Huberman Lab episode is out: Peptides: The Science, Uses & Safety | Dr. @AbudBakri 0:00 Abud Bakri 3:33 What are Peptides?, Receptors 6:26 BPC-157, Discovery, Animal Proteins 11:19 BPC-157, Animal Data, Regeneration 12:27 Sponsors: Eight Sleep & Lingo 14:51 BPC-157, Regeneration & Healing, Neurological Effects 19:27 Adverse Events, Clinical Trials & Legality of BPC-157 29:41 GLPs & Compounding Pharmacy; Peptides & Gray Market 35:25 Manufacturing, Compounding Pharmacies, Gray Market, Black Market 41:32 Peptides & Tumor Growth?; Angiogenesis 45:17 Sponsor: AG1 47:01 Pharmaceutical Patents, Clinical Trials for BPC-157, Potential Outcomes 54:19 BPC-157 Healing, Patient Experiences 1:01:22 Physician Counsel, FDA Legality, Malpractice 1:07:25 Pinealon, Epithalon, Discovery; Sleep & Cognitive Performance, Risks 1:18:17 Sponsor: Function 1:19:55 Pineal Age Deterioration, Epithalon, Eye Health 1:29:38 Thymus, Age Shrinkage; Thymosin Alpha-1, Immune Function 1:38:13 TB-500; Pet Health; Thymic Peptide Doses, Thymulin, Zinc 1:49:13 Sponsor: LMNT 1:50:33 GHK-Cu (Copper GHK), Collagen 1:55:32 Illness Recovery, Thymic Score, Tool: Blood Test & Immune Cell Counts 2:04:01 Growth Hormone Secretagogues, Age Decline, Cancer Risk, Insulin 2:15:36 GHK-Cu, Topical Cream, Red Light Therapy 2:20:25 GLPs, Discovery, Physical & Cognitive Long-Term Effects, Fertility 2:33:53 Retatrutide; Drug Patents & Nomenclature 2:39:03 Peptides: Women Reproductive Disorders; TBI, Neurologic Effect; Safe Sources 2:45:34 Zero-Cost Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Sponsors, Protocols Book, Social Media, Neural Network Newsletter Includes paid partnerships.
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Peter Steinberger 🦞
Peter Steinberger 🦞@steipete·
@gauthampai Don’t worry it’ll take 3 months until it’s there. We’ll be talking about fleets that design your loops then.
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Peter Steinberger 🦞
Peter Steinberger 🦞@steipete·
Here’s your monthly reminder that you shouldn’t be prompting coding agents anymore. You should be designing loops that prompt your agents.
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izz ✝️ retweetledi
Chamath Palihapitiya
Chamath Palihapitiya@chamath·
Key to winning: Choose to be positive and grateful. Then, just keep at it. Time is the great compounder and will do the rest. So many people just don’t have the discipline to stay positive and grateful. Then time compounds the bitterness instead.
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unusual_whales
unusual_whales@unusual_whales·
BREAKING: The U.S. will start revoking passports this week for parents who owe $100,000 or more in child support and soon will expand the policy, per AP
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