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FiPhysician
@fiphysician.bsky.social
Avoid getting hit when they are all blowing shit up
Nonresidents pay higher fees at Yellowstone National Park.
A U.S. Department of the Interior policy effective January 1, 2026, keeps the America the Beautiful annual pass at $80 for residents but raises it to $250 for nonresidents, along with a $100 per-person fee at 11 busy parks like Yellowstone.
November 25, 2025 at 8:58 PM
A key evolutionary lesson from our ancestors: I need to develop more and better mitochondria to burn fat efficiently and survive.

This explains why fasting makes your body more resilient.
November 24, 2025 at 11:27 PM
November 22, 2025 at 11:41 PM
Imposter Syndrome in Retirement

Imposter syndrome is common in medicine and annoying as drug reps. www.fiphysician.com/imposter-syn...
Imposter Syndrome in Early Retirement – FiPhysician
www.fiphysician.com
November 16, 2025 at 9:32 PM
How Often Are MRIs Used During Routine Executive Physicals?
As the pursuit of longevity and biohacking increases, will MRIs become a common part of routine executive healthcare? www.fiphysician.com/how-often-ar...
How Often Are MRIs Used During Routine Executive Physicals? – FiPhysician
www.fiphysician.com
November 15, 2025 at 11:42 PM
It is the best MRI he has ever seen as a doctor. That is the perfect end to the routine screening MRI Trump got as part of his executive physical.

How many executive physicians include MRI?
November 15, 2025 at 11:06 PM
Your Marginal Decade of Retirement
Go-Go, Slow-Go, and No-Go Phases of Retirement

The “marginal decade,” coined by Dr. Peter Attia, is the last 10 years of life.

How does this compare to the go-go, slow-go, and no-go phases of retirement? www.fiphysician.com/marginal-dec...
Your Marginal Decade of Retirement – FiPhysician
www.fiphysician.com
November 10, 2025 at 2:28 PM
Trump v Newsom and the Dark Triad

Trump and Newsom are ambitious politicians who exhibit Dark Triad traits, as do many politicians, which might help them succeed in polarized settings by attracting voters who favor strongman qualities. www.fiphysician.com/the-dark-tri...
The Dark Triad: Trump v Newsome – FiPhysician
www.fiphysician.com
November 3, 2025 at 11:54 PM
Who gets audited by the IRS? www.fiphysician.com/denominator-...
Denominator Blindness in IRS Audits – FiPhysician
www.fiphysician.com
November 2, 2025 at 8:33 PM
So, am I still concerned about the 28T national debt? Yes, for the last 20 years.

Our national debt level was at its highest after the GFC and has been declining since. www.fiphysician.com/what-is-the-...
What is the denominator on our 28T national debt? – FiPhysician
www.fiphysician.com
November 1, 2025 at 7:56 PM
Instead of autocracy, we are now becoming a competitive authoritarian state, they say. What is a competitive authoritarian state? It is a system where many countries exist in this "gray zone" between democracy and outright dictatorship.
October 16, 2025 at 10:15 PM
Eradication is Impossible
Covid-19 presents a completely different challenge. Because immunity from Covid-19 is neither long-lasting nor fully effective, vaccination won't lead to complete elimination or eradication. Even with effective vaccines against SARS-CoV

www.fiphysician.com/chapter-7-er...
Chapter 7: Eradication is Impossible – FiPhysician
www.fiphysician.com
October 12, 2025 at 11:12 PM
Did you know that Russia has recently succeeded in upgrading its ballistic missiles to make them more difficult for Ukraine’s U.S.-supplied Patriot air defense systems to intercept? Ukrainian and Western officials confirm that these upgrades enable missiles to deviate
October 5, 2025 at 7:53 PM
In 2025, how much will you need in your 401(k) (assuming you own your home) to reach the 90th percentile of retirees? $463,000. Did you think it would be more or less than that?

How has that changed since 2020?
October 5, 2025 at 7:37 PM
Cruelty is the point. When will the government shutdown end? polymarket.com/event/when-w...
When will the Government shutdown end?
Polymarket | This market will resolve to the calendar date range (ET) of the first day after September 30, 2025 which the U.S. The Office of Personnel Manage...
polymarket.com
October 4, 2025 at 9:28 PM
I believe that Zoomers are the future. Teach them well and let them lead the way. Show them all the beauty they possess inside. Give them a sense of Pride!
September 28, 2025 at 11:48 PM
And what about the RIFs?
What you need to know about government shutdowns, with the next one (maybe) 53 hours away, eek!

TOMORROW on OptimistiCallie.

Subscribe here for my research straight in your inbox:

optimisticallie.com/subscribe
September 28, 2025 at 11:24 PM
[I’d skip this one unless you’re interested in knowing how we initially realized that Covid isn’t a threat to healthy young people.]

In other words, some individuals may simply not be susceptible to Covid-19 infection. www.fiphysician.com/non-suscepti...
NON-SUSCEPTIBLE PEOPLE – FiPhysician
www.fiphysician.com
September 28, 2025 at 11:17 PM
Life is good in Costa Rica and Mexico? Why is that? www.axios.com/2025/03/20/u...
U.S. once again hits new low in World Happiness Report
The U.S. ranked one spot lower than it did the year before, a new record low.
www.axios.com
September 28, 2025 at 9:31 PM
After all, we will never eradicate Covid-19.

Chapter 5: REPRODUCTION NUMBERS AND HERD PROTECTION

[Viral replication, a chapter I honestly had forgotten I wrote. In 2020, we were told we could flatten the curve in 14 days, www.fiphysician.com/after-all-we...
After all, we will never eradicate Covid-19. – FiPhysician
www.fiphysician.com
September 27, 2025 at 10:47 PM
Let's discuss narcissistic traits in our government. Do you think more Democrats or Republicans are narcissistic? And why?
September 27, 2025 at 7:57 PM
Chapter 4 Human Coronaviruses and Pre-Existing Immunity

This was my first controversial call that humans had pre-existing immunity due to exposure to other coronaviruses. Remember, this was 2020, before vaccines and before the CDC really lost our trust. www.fiphysician.com/chapter-4-hu...
Chapter 4 Human Coronaviruses and Pre-Existing Immunity – FiPhysician
www.fiphysician.com
September 26, 2025 at 9:17 PM
From an evolutionary biology perspective, pregnant women should only take Tylenol for fever when necessary to protect fetal development from hyperthermia-related harm. They should use the lowest effective dose for the shortest duration under medical supervision,
Perplexity
Perplexity is a free AI-powered answer engine that provides accurate, trusted, and real-time answers to any question.
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September 22, 2025 at 10:02 PM
Don't take Tylenol. What is wrong with that advice? From an evolutionary biology standpoint, it often doesn't make sense to reduce a fever since it is protective and adaptive for host defense. What is wrong with that advice?
September 22, 2025 at 9:34 PM
My fellow pediatricians and OBs, what are your thoughts after today?
September 22, 2025 at 9:31 PM