interventional cardiologist, cyclist, triathlete, marathoner, and father.

Joined October 2008
241 Photos and videos
Hey @apple, is there anyway I could turn off notifications for every single Tapback I receive? It’s just pointless sensory noise at this point.
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Matthew Certain retweeted
MAHAspital
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Matthew Certain retweeted
The killing of Alex Pretti is a heartbreaking tragedy. It should also be a wake-up call to every American, regardless of party, that many of our core values as a nation are increasingly under assault.
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Matthew Certain retweeted
We published this today. Phenomenal analytical work to understand how things could play out. give us 1,000 retweets and 5,000 likes, and we make it publicly available and do a space to discuss findings first week of Jan.
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This can't come soon enough. Too many people die needlessly in car accidents.
I have a guest essay in @nytimes today about autonomous vehicle safety. I wrote it because I’m tired of seeing children die. Done right, we can eliminate car crashes as a leading cause of death in the United States @Waymo recently released data covering nearly 100 million driverless miles. I spent weeks analyzing it because the results seemed too good to be true. 91% fewer serious-injury crashes. 92% less pedestrians hit. 96% fewer injury crashes at intersections. The list goes on. 39,000 Americans died in crashes last year. More than homicide, plane crashes, and natural disasters combined. The #2 killer of children and young adults. The #1 cause of spinal cord injury. We’ve accepted this as the price of mobility. We don’t have to. In medicine, when a treatment shows this level of benefit, we stop the trial early. Continuing to give patients the placebo becomes unethical. When an intervention works this clearly, you change what you do. In driving, we’re all the control group. Cities like DC and Boston are blocking deployment. And cities are not the only forces mobilizing to slow this progress. It’s time we stop treating this like a tech moonshot and start treating it like a public health intervention that will save lives. Link to article below. 👀 this video of Waymo cars evading crashes with people and vehicles. I especially note the ones that require it having a 360° view. My sincere thanks to Alex Ellerbeck and @acsifferlin for their wisdom and sure hand in editing this piece.
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Matthew Certain retweeted
2 Nov 2024
Exercise volume or intensity: which is more important for promoting training adaptations? 🫀🫁 A recent meta-analysis explores this question & provides evidence on how training variables influence mitochondrial content, capillarization, and VO2 max. Let’s explore. 👇🏼
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Tell me you don’t take trips in your @Tesla without telling me.
30 Apr 2024
Tesla still plans to grow the Supercharger network, just at a slower pace for new locations and more focus on 100% uptime and expansion of existing locations
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Matthew Certain retweeted
Make her famous Twitter/X #ParisRoubaix
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Matthew Certain retweeted
📐Tesla has shifted the Cybertruck delivery timelines slightly for new Foundation Series orders. Orders submitted today for AWD will be delivered by the end of June (<116 days). Orders submitted today for Cyberbeast will be delivered at the end of this year. You can still skip the line by referring three new customers to Tesla, and take delivery in under 45 days.
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@TrainingPeaks Can you help me with some questions regarding the charts. 1) Is there a way to show this chart but with distance by MONTH? Or even by 3 months intervals? it would be nice to compare how much distance was put in prior to races or events. 2) Is there a way to remove the grey bar (ie the planned distance). It clutters the chart and I don't care what was prescribed at that time.
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Why does this chart show the average swim distance over weeks that have not occurred yet (ie the rest of the year)? It should show the average amount of yards per week thus far. I want to compare to prior years swim amount, which would be averaged over 52 weeks, but we're only 3 weeks into 2024.
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Hey @SawyerMerritt, I wonder if this explains the TX/CA only requirement for Foundation series? Maybe they could only definitively include this installation in CA/TX? They're not installing solar/power walls in all states yet and I wonder if it's the same team doing this install. CC: @wholemars @DirtyTesLa @greggertruck
9 Dec 2023
Professional Installation of PowerShare is included in Foundation Series Cybertruck
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Matthew Certain retweeted
5 Nov 2023
Franz in the Stealth Black Cybertruck

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Hey, @IRONMANtri any comment on this? Baffling why you guys would do this.
I think @IRONMANtri are going through a period of self harm?
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Matthew Certain retweeted
BREAKING: Rep. Jasmine Crockett ABSOLUTELY DESTROYS the Biden Impeachment Inquiry & Donald Trump! This is an absolute must-watch & share. Follow @JasmineForUS 🇺🇸
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