Hart of Learning

Teacher, Thinker, Life long learner.
Interested in effective & efficient learning & teaching for humans and machines.
Live long and learn lots.

[Hart of Learning @HartofLearning]

After I finish listening to the "Classic Starts" Audiobook collection, I plan on working my way through this list:

[Dissident Teacher @educatedandfree]

It is done. Here are clickable links of over 400 books in the western canon, separated by age group. It's meant for all of you who want the best for your child's education and for your own as well.

The good news? Emily Dickinson was right when she said of books: "How frugal is the chariot that bears the human soul."

Link to the library below: ⬇️

[Jon Brooks @jonbrooks]

There are now NINE states where more than 1 in 10 homes listed for sale have entered fire-sale territory.

Arizona.
Florida.
Louisiana.

These states lead the nation.

This is what happens when inventory rises faster than buyers can absorb it.

The housing market isn't crashing everywhere.

But the cracks are getting harder to ignore.

[Wall Street Apes @WallStreetApes]

The glass is already being broken out on the new Throne Labs smart portable restrooms in Seattle, Washington

These bathrooms were installed just 2 weeks ago and are now already unusable because the windows are broken out

Cost to taxpayers is $116,250 per year, per bathroom

Seattle installed them as part of a one-year pilot program with the Seattle Department of Transportation to support increased foot traffic ahead of the 2026 FIFA World Cup

No one is surprised by this. The only surprise I have is it not always being completely covered in multiple layers of graffiti yet

Democrat policies destroy cities

[Isaac Holyk for U.S. Senate @voteholyk]

Hey WA,
I need your help.
I am asking @GovBobFerguson to call a special session to suspend the CCA to immedietly lower gas prices and utilities.
If you want Bob to suspend the CCA to help working families and lower gasoline and electricity costs then share this post and like it.
Others in the legislator are starting to call for it.
Let's see if Bob actually cares about working class people in Washington.
#waspecialsession2026

[Brian Roemmele @BrianRoemmele]

UNDERWATER DATA CENTERS

China has achieved what it calls the world’s first fully operational, commercially running underwater AI data center off the coast of Shanghai.

The facility, developed in partnership with HiCloud Technology (also referred to as Hailanyun), features nearly 2,000 servers housed in sealed, submarine-grade capsules submerged in the ocean.

By leveraging the natural cooling power of seawater, it dramatically reduces energy demands cutting cooling costs by up to 90% compared to traditional land-based data centers. The entire system is powered by nearby offshore wind farms, making it highly renewable and energy-efficient.

The $226 million project was officially launched in June 2025, with construction completed later that year and full commercial operations beginning in recent weeks. It supports high-performance AI workloads, including GPU clusters from partners like China Telecom.

For context, the U.S. explored similar concepts through Microsoft’s Project Natick but quietly shelved the initiative in 2024 after successful trials, opting not to pursue large-scale commercial deployment.

This development highlights China’s aggressive push to address the massive energy and cooling challenges of scaling AI infrastructure.

This is an interesting engineering achievement in the AI infrastructure race, though scaling, maintenance, and long-term reliability in a marine environment will be key factors to watch.

[Brian Hansford @remarkmarketing]

Janicki is a fantastic company that was founded in Washington. People I know in the aerospace industry call Janicki the "gold standard" for machining critical parts and tools for the military, NASA and companies like SpaceX, Boeing, and Blue Origin. They hire Americans and lots of trades.

Just imagine, this could be a $800 million investment to expand in Washington. Great Falls is a fantastic location for them to expand to.

Congrats to Janicki and Montana!

[Hart of Learning @HartofLearning]

This is where I go to research stock most of the time. There's a couple companies (IREN) that don't seem to fall in the category in which they are placed.
@EmmaStockNotes created a gem of a tool for finding value stocks. Beautiful.

[Emma Stock Notes @EmmaStockNotes]

Just over 3 months ago, I made my first post here.

Today I passed 1000 followers.

A special thank you to a few people who mentioned and supported the account early, before there was any social proof:

@caleb_investTML
@PLHstock
@invest091
@HartofLearning

And to everyone who followed, replied, shared feedback or gave the account a chance early on - thank you.

I’m here for the long run.

More investing education, market analysis, company research, investing frameworks, portfolio tracking and the Top Percentile toolkit to come.

[Emma Stock Notes @EmmaStockNotes]

Just over 3 months ago, I made my first post here.

Today I passed 1000 followers.

A special thank you to a few people who mentioned and supported the account early, before there was any social proof:

@caleb_investTML
@PLHstock
@invest091
@HartofLearning

And to everyone who followed, replied, shared feedback or gave the account a chance early on - thank you.

I’m here for the long run.

More investing education, market analysis, company research, investing frameworks, portfolio tracking and the Top Percentile toolkit to come.

[Brian Roemmele @BrianRoemmele]

“Wait so you’re telling me…”

[John Meyers @cogmeyer]

So my kid just finished a semester in the dorms at a CA junior college. His roommate is a previously homeless 18 year old that apparently got free dorm, free meal plan and even extra cash for checking the homeless box. He spent the cash on a gaming system. He dropped out the first month, but was allowed to stay in the dorm because... homeless. Today 5 of 6 suite mates got together to clean the dorm, to get their deposit back (and also to not be slobs).

This guy sat in a chair watching, because taxoayers payed his dorm deposit.
Anyway just a little report on CA efforts to house the homeless.

[S.A. Dupres @Susan_Dupres]

@voteholyk Washington State

REPEAL (Not Pause) Washington State Climate Commitment Act

And ... REPEAL the 2% increase on the state gas tax that hits every July, too.

@Sessler
@JimWalshLD19

[Isaac Holyk for U.S. Senate @voteholyk]

Hey WA,
Gas prices in WA have officially hit and all time high and it is going to get even worse because the gas tax automatically rises in July.
I am calling on @GovBobFerguson to do what is best for WA and call a special session to repeal the CCA and lower gas costs for WA immediately.
Gas would be about $4.25 a gallon if we didn't have all the state taxes and Climate Commitment Act that has done NOTHING!
It's a worthless piece of legisaltion that has only increased the cost of living for WA families so woke Democrats can feel like they are saving the planet.
News flash, woke politicians are not going to change the weather or save the planet but they sure will bankrupt everyone trying.

[Hart of Learning @HartofLearning]

@kareem_carr Yep. @_MathAcademy_

[Hart of Learning @HartofLearning]

@EconNotes_ IREN. The company that sells to both NVIDIA and MICROSOFT.

[Hart of Learning @HartofLearning]

@danroberts0101 Great work. Early innings indeed. Long-term I'd love to see IREN data centers as the heart of new communities, literally the foundation.
Multi- story buildings with data centers at the bottom, then a floor of stores, a floor of communal space, floors for housing, gardens on top.

[Hart of Learning @HartofLearning]

@helenrey Use @physicsgraph to learn physics

[ꪝe @_wej01]

My high school AP English teacher bought me a suit and gave me gas money so I could afford to attend a merit scholarship interview weekend at Sewanee: The University of the South. Without her, I never would have landed a full ride worth close to $500k between tuition, room, board, books, fees, and annual international internships. She’s the reason I broke my family’s cycle of not even graduating from HS and thanks to her, I got a world-class education without student debt. I owe her so much. 🥹

[Kyronis @kyronis_talks]

A community college professor named Marty Lobdell taught the same study skills lecture for 30 years. The video quietly became one of the most watched educational recordings online, with over 10 million views.

He spent his career watching students fail not because they were lazy, but because no one had taught them how their brain actually works when learning something difficult.

The lecture, “Study Less Study Smart,” contains a powerful framework.

Your brain cannot sustain focus the way most people believe. Studies show the average learner hits a wall between 25 and 30 minutes. After that, efficiency collapses. You’re still sitting there, but almost nothing is being absorbed.

Lobdell told the story of a student who planned to study 6 hours a night, 5 nights a week. Thirty hours total. She failed every class. She was not lacking effort. She was confusing time near books with actual learning. The fix is simple: when focus drops, stop, take a 5 minute rewarding break, then return. That reset makes a massive difference.
He also destroyed the myth of highlighting and re reading. Recognition is not the same as recall. To prove it, he read 13 random letters. Almost no one remembered them. Then he turned them into “Happy Thursday.” The entire room recalled them instantly. The brain stores meaning, not repetition.

This is why elaborative encoding works so well.

Finally, he shared the most important principle: 80 percent of study time should be active recitation. Close the book and explain the material in your own words. Teach it to someone else or an empty chair. Retrieval is where real learning happens.

His closing line stuck with me: If this information does not change your
behaviour, you have not actually learned it.

The best students do not study more hours. They stop confusing the feeling of studying with the reality of learning.

[Hart of Learning @HartofLearning]

@DividendBreeder The area I disagree with Ramsey is paying off lowest debt amount first. I say pay off debt with biggest interest rate first.
Though, I just don't acquire debt- pay off monthly.

[Mechanical Knowledge @mechanical_4u]

"This Gear Solved A Problem Most Engineers Couldn't Handle"

At first, engineers thought gears only needed one thing. Teeth that mesh. But when factories started running bigger machines at higher torque and speed, something strange happened. The gears sounded like metal hammers smashing together. Vibration exploded.

Bearings wore out faster. Entire systems became unstable.

Then came the herringbone gear. Instead of straight teeth slamming together all at once, its angled double-helical design transfers force gradually across the surface. Smoother contact. Less shock. Almost silent operation. But here's the genius part most people miss. Normal helical gears create massive sideways axial thrust that pushes shafts apart under load. Herringbone gears cancel that force completely by using mirrored tooth geometry. No extra thrust bearings. Less wear. Higher load capacity. That's why you'll find them inside marine propulsion systems, heavy industrial gearboxes, and oil-field machinery where failure is not an option. The crazy part? Engineers still avoid them because manufacturing these gears is brutally expensive. Which brings us back to the question... if regular gears already work, why build the impossible one?

[Give A Shit About Nature @giveashitnature]

North Carolina figured something out 40 years ago that most states still haven't.

Instead of just mowing roadsides, they started planting wildflowers.

What began as a tiny 12-acre experiment in 1985 has grown to 1,500 acres of pollinator habitat across the state.

The U.S. mows roughly 17 million acres of roadside grass every year at massive cost for basically zero benefit to wildlife.

Every state already pays to maintain those shoulders and medians. They could turn that same land into wildflower corridors for less money and way more impact.

North Carolina proved it works, the rest of the country has no excuse.