Doctor Jack

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Doctor Jack

Doctor Jack

@DoctorJack16

Tesla, SpaceX, emerging tech, health, positivity & sharing of useful knowledge. Figuring out Chapter 2 of life. All posts are not medical/financial advice. 🇺🇸

Katılım Şubat 2021
3.5K Takip Edilen62.2K Takipçiler
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Doctor Jack
Doctor Jack@DoctorJack16·
There are many posts about people's criteria on whether they follow someone on X. Below is what I believe to be the most important. - Do they demonstrate critical thinking skills? This can be seen in how they chain their thoughts together and arrive at THEIR conclusion. - Do they have their ego under control? This can be seen if they refrain from emotional outbursts and resorting to labeling as a means of communication. They are open to being wrong. One's ego is the source of so much suffering. - Do they say things with respect? The world can use a little more respect for our elders, for a uniform, and in general, respect for our fellow human. However, it is important to be reminded that respect is something that may be given initially but can be quickly taken by what one says and does. - Do they have courage or the self-confidence to say what is perhaps not popular? This is a big one. In today's digital world, it is easy to be bullied in to silence. It takes a special person to speak out in such an environment. So, what about you? What are your criteria? Please criticize mine as we can all stand to be less wrong and only through thoughtful, well-constructed, non-egotistical and respectful dialogue will this be achieved. Thanks for reading and Happy Monday! 😀
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Matthew Zirwas, MD
Matthew Zirwas, MD@MattZirwas·
Dermatology is wrong about the sun. And it's killing people. I'm a dermatologist. 226 publications. I should know. Avoiding the sun increases the risk of dying as much as being a smoker. We can fix it. For decades, dermatology's message has been simple: avoid the sun. Wear sunscreen. Seek shade. UV causes skin cancer. End of discussion. That message is incomplete and outdated. People are dying because of it. Lots of people. The evidence has gotten strong enough that the field needs to update it.🧵
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Doctor Jack
Doctor Jack@DoctorJack16·
Tesla Robotaxi will change everything and open opportunities for those who think outside the box. Even the healthcare industry could be affected on a massive scale. The biggest problem is that such an industry normally makes changes at the pace of a snail.
Cern Basher@CernBasher

x.com/i/article/2050…

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Skylerity
Skylerity@skylerity·
Getting real sick of these people in Cybertrucks not doing the headlight flash or wave back to me. I mean why even have the truck if you’re not gonna be cool?
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haha yes
haha yes@jchenone20·
Agreed. Elon cares so much that he is willing to give every human the benefit of the doubt when most of us are more altruistic. His plan for abundance for all works when people respect each other. Fits Elon's way of thinking, create things to make life better for everyone, not just wake up everyday to fix problems. Elon is inspirational and I dare say mentally evolved beyond common humans. This is going to take generations for everyone to understand, but hopefully looking back we will appreciate we supported the right person.
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Doctor Jack
Doctor Jack@DoctorJack16·
“In a world that rewards detachment, Musk's superpower is that he still feels things. The Tesla mission was personal. The SpaceX mission is personal. Neuralink is personal because his son was non-verbal until eight. Even the Twitter purchase was personal, his obsession with free speech tied to his own censoring.” “Every project is downstream of something he actually cares about.”
Race@multiplanet1

Elon said something that stuck with me. He said the hardest part of being him isn't building the rockets, it's caring about everyone he can't save. That single line changes how you see him. Most people think the secret to Musk is intelligence. Or work ethic. Or risk tolerance. They miss the real thing. His edge is that he has a heart. In a world optimized for cold optimization, where every CEO is trained to maximize shareholder value and minimize emotional exposure, Musk does the opposite. He builds what moves him. He fights for what matters to him. A 15 year old girl named Liv Perrotto designed a Shiba Inu plush in 30 minutes. She had cancer. Stage 4. The plush was her contribution to Polaris Dawn, the SpaceX mission that flew higher than any private spaceflight in history. She named it Asteroid. The plush flew. It became the mission's zero g indicator. The first thing that floated when they hit space. Liv died in January. Before she died she wrote eight wishes for Elon. The eighth one was simple. Make Asteroid the official mascot of SpaceX. She knew she wouldn't see it happen. She wrote it anyway. When the request reached Elon, he didn't have to respond. He's the richest man alive. He gets thousands of dying wishes. Most go unanswered, that's just math. He answered this one. He said yes. Asteroid is now the SpaceX mascot. Because a 15 year old girl drew a dog and asked the most powerful man in the world to remember her. This is the part nobody understands about Musk. He could have ignored it. The optimal capital allocation move was to ignore it. The brand calculation said ignore it. The lawyers said ignore it. He didn't ignore it. People debate whether he's a genius or a clown, a hero or a villain, a savior or a scammer. They miss the point entirely. The reason he keeps winning isn't his intelligence. It's that he hasn't optimized away his humanity. The other tech founders are smarter at certain things. They have better processes. Better PR teams. Better political instincts. None of them would have made Asteroid the mascot of SpaceX. Most of them couldn't tell you the name of a child who died of cancer last year. That's the gap. That's the moat. That's why he beats them all. In a world that rewards detachment, Musk's superpower is that he still feels things. The Tesla mission was personal. The SpaceX mission is personal. Neuralink is personal because his son was non-verbal until eight. Even the Twitter purchase was personal, his obsession with free speech tied to his own censoring. Every project is downstream of something he actually cares about. That's why he can work 100 hours a week for 20 years without burning out the way normal people do. Burnout comes from doing things that don't match your values. He's never had to do that. Liv didn't get to see her plush become the SpaceX mascot. But she wrote it down before she died, and the most powerful man alive said yes, because somewhere underneath the rockets and the satellites and the AI companies and the trillion-dollar valuations, he's still the kid who cried watching cartoons. Most people lose this by 30. They call it growing up. It's actually atrophy. @elonmusk kept it. That's the whole secret.

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Doctor Jack retweetledi
Matthew Zirwas, MD
Matthew Zirwas, MD@MattZirwas·
What I Actually Tell My Patients Get regular, moderate sun exposure. Don't burn. Don't avoid the sun like it's poison, because the best obtainable evidence says that's more dangerous than the sun itself. I'm a dermatologist saying this. But I don't make money treating skin cancer, wrinkles, or age spots. I only treat eczema and rashes. Going outside helps eczema. If this advice sticks, it hurts my business. But maybe that's why I can see this in a way other dermatologists can't. I'm not biased from seeing skin cancer every day. I just see the evidence. Posting this will hurt my standing with my colleagues. I have every professional incentive to keep telling you to stay inside and wear SPF 50. I'll get blowback. Lots of blowback. But I follow the evidence. And the evidence is clear. Dermatology is wrong. Excessively avoiding the sun kills people. It's time for a change.
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Doctor Jack
Doctor Jack@DoctorJack16·
@TechOperator I had a taste of the good life a couple years ago when I took a sabbatical following the passing of a very close friend of mine. Congrats buddy. Enjoy it. Well earned I’m sure.
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TechOperator
TechOperator@TechOperator·
This is my ‘I left corporate IT and survived’ face.
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Ming
Ming@tslaming·
🚨 According to a recent SEC filing, Tesla’s security budget for @elonmusk is surging 🔥 The company spent roughly $4.8 million to protect him in 2025, a significant jump from $2.8 million the year before 🔥 That upward trend has carried into the new year, with costs through February hitting $1.3 million—more than double what was spent during that same timeframe last year 🔥 PROTECT ELON AT ALL COST 🔥
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Doctor Jack
Doctor Jack@DoctorJack16·
@multiplanet1 Nice post. I could not agree more. The media has twisted who THE man in the arena truly is.
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Race
Race@multiplanet1·
Elon said something that stuck with me. He said the hardest part of being him isn't building the rockets, it's caring about everyone he can't save. That single line changes how you see him. Most people think the secret to Musk is intelligence. Or work ethic. Or risk tolerance. They miss the real thing. His edge is that he has a heart. In a world optimized for cold optimization, where every CEO is trained to maximize shareholder value and minimize emotional exposure, Musk does the opposite. He builds what moves him. He fights for what matters to him. A 15 year old girl named Liv Perrotto designed a Shiba Inu plush in 30 minutes. She had cancer. Stage 4. The plush was her contribution to Polaris Dawn, the SpaceX mission that flew higher than any private spaceflight in history. She named it Asteroid. The plush flew. It became the mission's zero g indicator. The first thing that floated when they hit space. Liv died in January. Before she died she wrote eight wishes for Elon. The eighth one was simple. Make Asteroid the official mascot of SpaceX. She knew she wouldn't see it happen. She wrote it anyway. When the request reached Elon, he didn't have to respond. He's the richest man alive. He gets thousands of dying wishes. Most go unanswered, that's just math. He answered this one. He said yes. Asteroid is now the SpaceX mascot. Because a 15 year old girl drew a dog and asked the most powerful man in the world to remember her. This is the part nobody understands about Musk. He could have ignored it. The optimal capital allocation move was to ignore it. The brand calculation said ignore it. The lawyers said ignore it. He didn't ignore it. People debate whether he's a genius or a clown, a hero or a villain, a savior or a scammer. They miss the point entirely. The reason he keeps winning isn't his intelligence. It's that he hasn't optimized away his humanity. The other tech founders are smarter at certain things. They have better processes. Better PR teams. Better political instincts. None of them would have made Asteroid the mascot of SpaceX. Most of them couldn't tell you the name of a child who died of cancer last year. That's the gap. That's the moat. That's why he beats them all. In a world that rewards detachment, Musk's superpower is that he still feels things. The Tesla mission was personal. The SpaceX mission is personal. Neuralink is personal because his son was non-verbal until eight. Even the Twitter purchase was personal, his obsession with free speech tied to his own censoring. Every project is downstream of something he actually cares about. That's why he can work 100 hours a week for 20 years without burning out the way normal people do. Burnout comes from doing things that don't match your values. He's never had to do that. Liv didn't get to see her plush become the SpaceX mascot. But she wrote it down before she died, and the most powerful man alive said yes, because somewhere underneath the rockets and the satellites and the AI companies and the trillion-dollar valuations, he's still the kid who cried watching cartoons. Most people lose this by 30. They call it growing up. It's actually atrophy. @elonmusk kept it. That's the whole secret.
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Doctor Jack
Doctor Jack@DoctorJack16·
@leoliang7285 Keep holding and YOU will look like the genius compared to your two friends.
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Lumen流明 | TSLA & Macro
我的两个好朋友都是半仓特斯拉半仓Google的,只有我一个单一持仓特斯拉,感觉他们的持股心态要好太多了。这个真的是要反思的地方,单一的重仓往往在持续大跌时候因为焦虑而产生被动错误动作。不过反而已经是这样了,Google已经上天了,继续单吊特斯拉,希望未来elon可以狠狠的奖赏我们这一帮all in tesla的股东吧。
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Doctor Jack
Doctor Jack@DoctorJack16·
@TeslaRecruiting @rocker_261 Awesome video! Thanks for accelerating the transition to sustainable energy. In this age of AI with never before seen energy usage, battery storage is crucial.
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Tesla Recruiting@TeslaRecruiting·
Megafactory California (~1h from San Francisco) is the largest utility-scale battery manufacturing facility in North America, capable of producing 10,000 Megapacks every year
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AleXandra Merz 🇺🇲
AleXandra Merz 🇺🇲@TeslaBoomerMama·
10-K/A SEC filing Related Person Transactions Comparing 2024 vs 2025 Happy to see that Elon's security expense increased by 71%
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Doctor Jack
Doctor Jack@DoctorJack16·
@4thOfJuly365 100% By today’s standards, every “Tom boy” would be transitioned.
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David Mavis
David Mavis@DavidMavis11·
@FleetChrisBrown @DoctorJack16 I retired from the trucking industry and there have been may assessments of the Tesla semi, and everyone was extremely positive and all initial users have reiterated their commitment to moving to it.
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Doctor Jack
Doctor Jack@DoctorJack16·
“High volume line.” $TSLA The dedicated factory next to Giga Nevada is designed for 50,000 trucks per year at full capacity which is expected late to early next year. With pricing $260k (Standard Range) to $290k+ (Long Range), that’s $14 BILLION in annual revenue once fully ramped! Electric Class 8 trucking is about to get real. Game changer incoming!
Tesla Semi@tesla_semi

First Semi off high volume line

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Doctor Jack
Doctor Jack@DoctorJack16·
There's a reason why people that immigrate to the U.S. are some of the most patriotic citizens that love the country and what it stands for. They have seen the opportunities that America provides compared to other countries. They have a profound appreciation of the freedoms we take for granted on a daily basis. And once they get a taste of those opportunities and freedoms for themself and their family, they are willing to stand up for it.
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Doctor Jack
Doctor Jack@DoctorJack16·
@Teslaverse_4269 Fully agree. I'm just saying that the comparison of CT to Semi is apples to oranges.
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Teslaverse
Teslaverse@Teslaverse_4269·
@DoctorJack16 I know, but there's always uncertanty in the execution of difficult products. Never assume a company will automatically get to get to their top goals, always judge on results trimester by trimester
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Warren Redlich - Chasing Dreams 🇺🇸
If you had to choose one country to live in for the rest of your life, but the place in that country is randomly decided, which country would you choose?
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Doctor Jack
Doctor Jack@DoctorJack16·
Did you know? One Tesla Semi could generate roughly the same profit as 5–7 Model Ys (assuming identical margins). And I would expect better Tesla Semi margins compared to the rest of the lineup over time. Semi: ~$290k Avg Model Y: ~$45–55k High-value trucks punch way above their weight on the P&L. Tesla’s pricing power in semis is underrated.
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Doctor Jack
Doctor Jack@DoctorJack16·
@Tesla_Borg Exactly. We have been this patient for this long. No need to rush it to sacrifice safety.
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