Joyboy

Software Engineer

[Joyboy @Claircorp]

@uch__wendy @chowdeck The other day I ordered amala from labule in lekki and the dispatch arrived with zobo. I did not accept it. Fortunately for them they returned it and brought back the right order. Things like this make me wonder if your dispatchers even knows what they're doing.

[uch_wendy💎 @uch__wendy]

@chowdeck I don’t understand this new pattern of ordering something and receiving another thing entirely. Worst of all, you’re sending 100 naira to my wallet?? Is this a joke?? Please refund me or it’s not going to be funny
#chowdeck

[Joyboy @Claircorp]

@uch__wendy @chowdeck Can't you guys have your dispatch simply confirm from whoever packs an order if they packed the right items, it's as easy as breathing.
Come on @chowdeck!!! To think I left @glovo for you guys. Smh 😒

[Joyboy @Claircorp]

@uch__wendy @chowdeck @chowdeck
Chowdeck the quality of your service has seriously deteriorated. You guys have really fallen off. I have experienced something like this a couple of times also.
Worst off, your customer support is always supportive of the restaurant.

[NIQS YOUNG QUANTITY SURVEYORS FORUM @YQSForum]

Welcome to April! 🌟

From the YQSF family, wishing you a month filled with growth, opportunities, and joy!

Warm regards,
YQSF Family 😊

[Queeneth @Queeneth01olx]

I spent 4 years paying my younger sister’s school fees. Every single kobo.

The day she graduated, she gave the acknowledgement speech and thanked everyone except me.

I sat in that hall and felt my soul leave my body 😭.

When she got admission, things were tight at home.

I had just started my first job.

I told our parents, "Don't worry. I’ll handle it." And I did.

Every semester. No breaks.

There were months I was eating 0-1-0 so her account wouldn't run dry.

I never told her. I didn't think I needed to.

Graduation day, she looked beautiful. The first graduate in our family.

I was prouder of her than I’ve ever been of myself.

Then she got the mic.

> She thanked God. (Fair).
> She thanked our parents. (Expected).
> She thanked her friends who kept her sane.
> She even thanked her HOD.

Then she sat down.

My mother looked at me. I smiled and looked away, but the clapping felt like it was happening in a different room.

I didn’t say anything that day. Or the week after.

But something in how I moved changed.

I stopped volunteering. Started waiting to be asked. Started noticing who actually noticed me.

People say, "Don’t give to be recognized." I agree to an extent.

But there is a thin line between not needing applause and being erased by the person you bled for.

That's not humility. That's invisibility.

We’re fine now. I brought it up six months later, calmly.

She cried, and said she was nervous and blanked.

Maybe. Maybe not 🤷

But I learned something either way.

Sacrifice without communication creates invisible resentment.

Tell people what you are carrying for them. Not to guilt trip them. But because silence makes martyrs, and martyrs make bitter people.

This same dynamic shows up in dating every day.

You’re playing the provider or the supporter in silence, while your partner thinks you're just an oil money that never runs dry.

Stop accepting the bare minimum of gratitude. If they don't see the sacrifice, they won't value the person making it.

Has someone ever made you feel invisible in a relationship after everything you did for them?
Let’s talk below.👇

[Pastor Adeboye @PastorEAAdeboye]

For 84 Years of God’s guidance, strength and Grace, Join me in thanking the one who has sustained me till this day !
#ThankYouJesus
#ThankYouLord
#EAA84

[POJU OYEMADE @pastorpoju]

When you habitually murmur and complain your words actually have an impact on your brain. You create nueral pathways in you that awaken your recognition system to only see what is wrong while eliminating all that is good.

You after sometime simply become incapable of seeing and recognising any good. This is why if a spouse keeps complaining of his or her partner, they lose the ability to see anything good in them while an outsider sees the beauty and recognises benefits in that person.

The complainer has lost the ability to see anything good in their environment and it now seems normal, right and intelligent to see negative things. It has become the norm.

The scripture that states when others say there is a casting down you will say a lifting up. Its two different minds at work.

Jeremiah 17:6 speaks about a man who will inhabit the patched places of the desert for he does not see when good comes. It is not that there is no good. He has lost the ability to see it.

Jeremiah 17:6
"6 For he shall be like the heath in the desert, and shall not see when good cometh; but shall inhabit the parched places in the wilderness, in a salt land and not inhabited."

[vixhaℓ @TheVixhal]

I left xAI today.
Not because of the pay.
Not because of the internal politics.
Not even because of the SpaceX and
xAI merger.

But because, in my manager’s words:
“No matter what feedback I give you, you never change your direction.”

At first, I thought he was just calling me stubborn. Then my inner math brain clicked… He was literally describing an eigenvector.

See, in math, when you apply a transformation (matrix A) to a vector (v), most vectors get spun around, twisted, and thrown somewhere else. They change direction and magnitude.

But an eigenvector is different, it keeps the same direction. The only thing that changes is its scale, given by something called an eigenvalue (λ).

If λ = 2 → The vector doubles in size.
If λ = 0.5 → It shrinks.
If λ = −1 → It flips direction.
If λ = 1 → It stays the same size.

Apparently… in his eyes, I was λ = 1.
Always the same size.
Always the same direction.

Now the math part (because unlike my manager, I actually explain things):

Here’s how you find eigenvalues and eigenvectors using a 2×2 matrix example:

Let’s say the transformation matrix was:

A =
[ 2 1 ]
[ 1 2 ]

Step 1: Find eigenvalues (λ)

We solve:
A·v = λ·v
→ (A − λI)·v = 0
→ det(A − λI) = 0

Subtract λ from each diagonal entry of A:

A − λI =
[ 2−λ 1 ]
[ 1 2−λ ]

Set the determinant equal to 0 and solve for λ:

Determinant:
(2−λ)(2−λ) − 1 = 0

(2−λ)² − 1 = 0
(2−λ)² = 1
2 − λ = ±1
λ = 2 ± 1

Case 1:
λ = 2 − 1 → λ = 1

Case 2:
λ = 2 + 1 → λ = 3

So, the eigenvalues are:
λ₁ = 1, λ₂ = 3

Step 2: Find eigenvectors (v)

For λ = 1:
(A − λI)·v = 0

[ 2−λ 1 ] [ x ] = [ 0 ]
[ 1 2−λ ] [ y ] [ 0 ]

[ 2−1 1 ] [ x ] = [ 0 ]
[ 1 2−1 ] [ y ] [ 0 ]

[ 1 1 ] [ x ] = [ 0 ]
[ 1 1 ] [ y ] [ 0 ]

From the first row:
x + y = 0
y = −x

From the second row:
x + y = 0
y = −x

So, the eigenvector is any scalar multiple of [ 1, −1 ]ᵀ.

For λ = 3:
(A − λI)·v = 0

[ 2−λ 1 ] [ x ] = [ 0 ]
[ 1 2−λ ] [ y ] [ 0 ]

[ 2−3 1 ] [ x ] = [ 0 ]
[ 1 2−3 ] [ y ] [ 0 ]

[ −1 1 ] [ x ] = [ 0 ]
[ 1 −1 ] [ y ] [ 0 ]

From the first row:
−x + y = 0
y = x

From the second row:
x − y = 0
x = y

So, the eigenvector is any scalar multiple of [ 1, 1 ]ᵀ.

Final result:
λ = 1 → v = [ 1, −1 ]
λ = 3 → v = [ 1, 1 ]

Congratulations 🎉, You have just learned how to find the eigenvectors and eigenvalues of a matrix.

Bonus: Why does AI/ML care?

Eigenvalues and eigenvectors are everywhere in AI/ML:

PCA → Reduces dimensions by keeping the top eigenvectors of the covariance matrix (largest eigenvalues = most variance).

Spectral clustering → Graph Laplacian eigenvalues help find clusters.

Neural stability → Eigenvalues of weight matrices can indicate exploding or vanishing gradients.

Markov chains → Long-term behavior is the eigenvector with eigenvalue 1.

In short:

Eigenvectors tell you the “unchangeable direction” under a transformation.

Eigenvalues tell you “how much” that direction is stretched.

[Joyboy @Claircorp]

@TheVixhal I literally understood everything you wrote. I followed each line just like when my engineering math professor first introduced eigenvector and eigenvalue to us in my first year. Sincerely speaking, your manager is shit.

[My Father’s Son @sir_omc]

GEOGRAPHY INFLUENCES THE HEIGHTS YOU CAN ATTAIN IN LIFE.

Here is how,

We like to pretend that the world is fair.
That talent, discipline, and hard work alone determine how far a person can go in life. While that is true, geography quietly disagrees; for where you are born already decides how steep your climb will be. Geography, being the place you grow up, determines the quality of your starting line—your access to education, infrastructure, stable electricity, clean water, healthcare, internet, security, and even functional institutions. Imagine a child growing up in the slums of Ekpan and being exceptionally gifted in robotics. It's one thing to know about his gifts and it's another to want to pursue it, and oftentimes, these gifts aren't even recognised because there's no way the brain can process the whole thing.

Your primary environment decides whether your curiosity will be nurtured or suppressed, and whether your ambition will be rewarded or punished.

A child born in a developed economy learns to dream early because the environment keeps validating possibility. A child born in a struggling one, even better off than a decaying one like that of Nigeria, often learns survival before self-actualization. You never chop you wan strive to know who you be. Truth is: One is taught how to scale; the other is taught how to endure.

This isn’t about intelligence for I believe brilliance is evenly distributed. Opportunity is just what is not distributed evenly.

Geography influences the networks you can access, the markets you can reach, the currencies you earn in, and the passports you carry. It shapes what is considered “realistic” for you long before you get a chance to decide for yourself. A child born in the rural areas of Eziopkor, who lives in the rainforests and whose almost daily activities revolve around farm work may find it difficult to see beyond the limits such environments show him.

Some places amplify effort. Others absorb it.

In certain environments, doing the right thing compounds into progress. In others, doing the right thing merely keeps you afloat. That's if you get a chance to stay afloat. The same work ethic produces wildly different outcomes depending on soil, not seed. The parable of the sower is proof. This is why people migrate, not because they hate home, but because they understand a painful truth: environments have ceilings. And some ceilings are dangerously low. Yet geography is not destiny, it is resistance. I no dey blame people wey dey japa. Imagine being tall and being put in a house not high enough to accommodate your height.

Those who rise from disadvantaged places don’t do so because the system helped them, but because they learned how to bend, break, or bypass it. Their success is not proof that the system works; it is proof of how much it didn’t.
So if you feel like you’re running hard but moving slowly, ask yourself an honest question: Is it a lack of effort or the weight of the environment? Because sometimes, the first step to reaching greater heights isn’t working harder but changing the ground you’re standing on.

🍀🍀

My name is Obadoni Michael.

[Chisom Nwokwu🌟 @tech_queen]

MY 2025 Wrapped🌟
• I got endorsed by @TechNation for the UK Global Talent Visa🇬🇧
• I relocated to the UK from Nigeria, God gave me so much ease with moving and I got settled in 1 month.
• I turned 25 this year, and celebrated my silver in a huge way🌟
• I joined a new company and started a new role!!
• I released my second engineering book with @WileyGlobal (300+ pages!)
• I started my Masters Degree at @GeorgiaTech, specialising in AI
• I gave a talk at an international cybersecurity and AI event (ALL EXPENSES PAID!!)
• I officially have a knowledge panel on @Google!💃
• I spoke at 11 events this year, including the @ZenithBank 's Women Day Conference (should have spoken at more but I took a break from speaking this year)
• I obeyed God and launched my mentorship program, @joincohorts_ and I’ve impacted lives globally. I designed my business model, made massive sales and officially started paying salaries!! (maybe I should go to business school next, lol)
• I was nominated for 3 awards, and I got recognised for my work in the tech ecosystem on numerous platforms.
• I worked with amazing brands this year, including @Replit, and I also made moneyyy as a creator!
• I passed my @Oracle certification exams this year (should have been more certs but we go again next year)
• I hit my savings/ investment goals even with a relocation (I thank God for always being my source!)
• I finally learnt how to SAY NO, this year I chose myself and wellbeing!
• My elder sister got married to the love of her life and she passed her medical exams. I'm so proud of her!
• I experienced a new dimension of God, I finally understood the gift of the Holy Spirit, and I got a word at Reboot Camp, @cci_global that changed my LIFE.

God beautified my life in 2025, and I can't wait for all that is to come in 2026❤️

[Faithfulness Okom @AttorneyF_]

I went back to Luke this morning just to revisit the story of Christmas… and Luke 2:7 hit me like an arrow to the chest:

“She gave birth to her firstborn son. She wrapped him in cloths and laid him in a manger because there was no room for them in the inn.”

We romanticize that line so much that we forget how brutal it actually is. If the gospel narrative is true, then that’s not a cute nativity detail. That is the most explosive statement in human history.

The God who created galaxies entered His own creation… and there was no room for Him.

No royal welcome, no palace, no safety, no honor, not even a bed. He comes into the world He made, and the doors are closed in His face.

This is the single greatest scandal of Christianity: God doesn’t supervise salvation from a throne. He steps into it. He doesn’t arrive in glory. He arrives vulnerable. He doesn’t come intimidating humanity into submission. He comes as a child who can’t even hold His own head up. If you were inventing a religion, this is not the story you’d write.

Luke is quietly showing something staggering about God’s character:
He wins, not by force, but by love.
He saves, not by domination, but by self-giving. He comes close, not as a King demanding space, but as a Savior entering even when there is “no room.”

And that manger isn’t sentimental. It’s confrontational.

It confronts our pride, cos humanity has always had space for power, wealth, celebrity, and status… just never space for God unless He serves our plans.

It confronts our illusions of strength cos God is showing that real power isn’t the ability to crush. Real power is the courage to empty yourself for the sake of others.

It confronts religion, cos God bypassed temples and elites and arrived where animals feed… then announced His coming not to emperors, but to shepherds.

Luke 2:7 tells us who God is.

He is not distant, He is not indifferent, He is not cold sovereignty. He is the God who chooses weakness so He can stand with the weak. He is the God who walks into human pain instead of observing it from afar. He is the God who would rather be rejected with us than reign without us.

If this verse is true, Christianity isn’t just another belief system. It’s a radical claim that the deepest power in the universe is love; not might, not fear, not spectacle.

So yes… this verse broke me today.
Because if this is who God is… then hope isn’t sentimental. Grace isn’t theoretical. And Christmas isn’t “cute.”

It’s God stepping into history quietly…
exposing us gently… and saving us completely. Luke 2:7 isn’t a children’s story. It’s a revolution.

Merry Christmas 🎄❤️

[MissMaposa @BeeforChrist]

It has happened !!! Two of my prayer requests made during Hallelujah Challenge have been answered 🙌🏾 God is so faithful and so good 🙏🏾🙏🏾🗣️🗣️

[Joyboy @Claircorp]

@theZeeEffect Software engineering job

[Chidinma | Software engineer @thejavabeast]

My hallelujah challenge email 🥹❤️

From my mouth to @BloombergAfrica

#HallelujahChallenge #HallelujahChallenge0CT2025

[Joyboy @Claircorp]

@TosinOlugbenga No make us get meeting 🎵,
Because we go scatter everything 🎶

[Fabien Potencier @fabpot]

20 years ago, #Symfony was publicly released as a #PHP Open-Source project. Thank you all for your support along the years.

[Boluwatife.vue.dev💚✨ @developerBolu]

I highly recommend a girlfriend mhen.

[Anthea Grace @anthea_grace]

The kind that changes everything.

That “I can’t believe this is my life” kind of miracle.

I want God to say “Watch this!” 💥