Woke up this morning struggling with worldly dissatisfaction and discontent and a general spiritual frustration and unease in my soul. It was a mood that was not of God and was not healthy spiritually. So I battled it with gratitude - started thanking Him for the birds I could hear singing (I love birds so much!), then for the trees, then for the fact that I had been given another day of life. Prayed for my boys, had a small spat with hubs (natch), resolved it (after 36 years you don’t give too much weight to these things), had a phone meeting that could have gone off the rails but ended up on a very positive note. Feeling much better. Thank you Jesus. If your Monday started off badly, start with the birds and work your way back to Him.
We're going around the Moon. Come watch with us. Artemis II's four-astronaut crew is lifting off from @NASAKennedy on an approximately 10-day mission that will bring us closer to living on the Moon and Mars. The launch window opens at 6:24pm ET (2224 UTC). https://t.co/X27QJejNDt
The math on this project should mass-humble every AI lab on the planet.
1 cubic millimeter. One-millionth of a human brain. Harvard and Google spent 10 years mapping it. The imaging alone took 326 days. They sliced the tissue into 5,000 wafers each 30 nanometers thick, ran them through a $6 million electron microscope, then needed Google’s ML models to stitch the 3D reconstruction because no human team could process the output.
The result: 57,000 cells, 150 million synapses, 230 millimeters of blood vessels, compressed into 1.4 petabytes of raw data. For context, 1.4 petabytes is roughly 1.4 million gigabytes. From a speck smaller than a grain of rice.
Now scale that. The full human brain is one million times larger. Mapping the whole thing at this resolution would produce approximately 1.4 zettabytes of data. That’s roughly equal to all the data generated on Earth in a single year. The storage alone would cost an estimated $50 billion and require a 140-acre data center, which would make it the largest on the planet.
And they found things textbooks don’t contain. One neuron had over 5,000 connection points. Some axons had coiled themselves into tight whorls for completely unknown reasons. Pairs of cell clusters grew in mirror images of each other. Jeff Lichtman, the Harvard lead, said there’s “a chasm between what we already know and what we need to know.”
This is why the next step isn’t a human brain. It’s a mouse hippocampus, 10 cubic millimeters, over the next five years. Because even a mouse brain is 1,000x larger than what they just mapped, and the full mouse connectome is the proof of concept before anyone attempts the human one.
We’re building AI systems that loosely mimic neural networks while still unable to fully read the wiring diagram of a single cubic millimeter of the thing we’re trying to imitate. The original is 1.4 petabytes per millionth of its volume. Every AI model on Earth fits in a fraction of that.
The brain runs on 20 watts and fits in your skull. The data center required to merely describe one-millionth of it would span 140 acres.
Tennesseans without power need immediate help.
I’m deeply grateful to @elonmusk & @xAI for going above & beyond to support Tennesseans by donating hundreds of generators to fill the gap, & I value their continued partnership to solve problems & support communities across our state.
When @BarackObama dropped innumerable bombs on everyone and their mother (without congressional authorization), it was diplomacy.
When @realDonaldTrump surgically removes a dictator without any bloodshed, he is a rogue dictator.
Any questions?
On January 10, 2025, the Biden-Harris administration put a $25 million bounty on Nicolás Maduro for information leading to his arrest or conviction.
Public safety is not a political game.
You do not label someone a narco-dictator one year and then pretend he is no longer a threat the next simply because a different president is in office. That is cynical and irresponsible.
Maduro’s drugs have killed thousands of Americans and continue to endanger our children. Imagine being the parents of 2-year-old Nicholas Feliz Dominici, who died from fentanyl poisoning in a Bronx daycare, and watching this political theater.
America is safer today because Maduro is no longer in power.
Welcome to New York, Nicolás.