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Babatunde Koiki
11.3K posts
Babatunde Koiki
@bkoiki950
Software | Data | AI | Finance ✨ | cs grad
Moon Katılım Ekim 2017
1.7K Takip Edilen1.2K Takipçiler
Babatunde Koiki retweetledi
Nigerian resilience is just a fancy word for collective cowardice. We aren't 'strong'—we are just easy to oppress.
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Babatunde Koiki retweetledi
Korean noise cancellation tunnels. Because people's homes are nearby, they are installed to trap vehicle sounds inside.
NOBIS (first of his name)@Nobizj
I fit burst cry if you post another modern architecture
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Babatunde Koiki retweetledi
Babatunde Koiki retweetledi
tbh, if you bring me from Canada to Nigeria, I will also have something to say
Aina Orosun 🥰🥰🥰@seyfunmi
There is something about Nigeria 🇳🇬 that someone needs to research: its ability to elicit speech in non verbal autistic children. A friend just told me about her 5 year old daughter, who had never uttered a word while they were in Canada. However, after just few months in Nigeria
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we shipped a little update to the Accrue’s website ✨🧡
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Babatunde Koiki retweetledi
Very soon, you'll be able to send an email or place a call to your representatives when you file a receipt on 1000reasons.vote/receipts.
Much later, I'll automate sending emails to reps each time someone reports a bad road, school without roofs, etc.
Nigeria must work! Good morning.
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Babatunde Koiki retweetledi
Had a Jane Street interview in 2013 that still bothers me.
It was my 6th round. Final interview. The guy walks in carrying no laptop, no notebook, just a cold brew and what I later realized was a single IKEA tea candle.
He writes on the whiteboard:
food: $200
rent: $800
utilities: $150
candles: $3,600
family: dying
Then he turns around and says, “Optimize.”
I laughed because I thought it was a culture-fit bit. He did not laugh.
So I said, “Well, obviously you spend less on candles.”
He says, “Assume candles are non-discretionary.”
Okay.
I start building a model. Basic constraint satisfaction. Family survival as a soft penalty. Candles as a state variable. Maybe there’s an arbitrage where you buy wholesale paraffin and convert the $3,600 line item into inventory.
He stops me.
“You’re thinking like a consultant.”
That’s when I knew I was in trouble.
He says, “Give me a bid-ask on family dying.”
I say, “What?”
He says, “You’re long candles, short family. Where do you make markets?”
I try to recover. I say the real issue is liquidity: rent and utilities are fixed, food is elastic, candles are emotionally inelastic. Therefore the optimal strategy is to securitize future candle enjoyment and borrow against it.
He nods for the first time.
Then he asks, “What time do you sell the candles?”
I say, “Whenever the market is liquid?”
He says, “Be more specific.”
I say, “Uh… 10 a.m. Eastern?”
For the first time, he smiles.
He goes, “Every day?”
I say, “Every day.”
He says, “In size?”
I say, “In size.”
He says, “And what do we call that?”
I say, “Market manipulation?”
The room gets very quiet.
He looks disappointed and writes something down.
“No. We call it providing liquidity to candle ETFs during the U.S. cash open.”
I try to save it. “Right. Of course. The family isn’t dying because we underfunded them. They’re just experiencing temporary price discovery.”
He nods again.
Then he points back at the board.
I had missed it. The utility bill was $150, but candles provide light. You can zero out utilities.
I update the budget:
food: $200
rent: $800
utilities: $0
candles: $3,750
family: still dying, but now in a more capital-efficient way
He says, “How confident are you?”
I say, “0.95.”
He smiles and circles candles.
“0.95 huh?”
Then he asks me to estimate how many leveraged longs get liquidated if we dump $3,750 of candles at 10:00:01 every morning for 90 consecutive trading days.
Needless to say I did not get the offer.
Deedy@deedydas
Jane Street made ~$40B in 2025 with 3,500 employees, a ~2x from the year before. At ~65-70% profit margin, that's $8M profit / employee, the highest for a 1000+ ppl company. High-frequency trading continues to be the most efficient money making engine. I want to share an old story about my Jane Street interview in 2014. Jane Street was known for hiring a lot of math, physics and CS olympiad winners from top universities and putting them through many rounds - including, for trading roles, a gauntlet of mental math. It was my 6th interview and my final round and I recall being asked "What is the next day after today in DD/MM/YYYY where all the digits are unique?" They'd toy with you and say "You can use a pencil and paper, if you want" but you knew that was an instant no. Painstakingly and as quickly as I could, I came to an answer. "How confident are you that this is correct on a 0-1 probability scale?" the interviewer said. "0.95", I blurted out, not fully knowing how to answer that. "Are you sure?" After thinking harder for a few more seconds, I realized I could've flipped the digits around to get a closer date. I gave the interviewer my answer. It was correct. "0.95 huh?" he chuckled. That's when I knew I failed. Note: fwiw, other companies that come close in efficiency are - Tether ($90M+ profit/emp) - Hyperliquid ($80M+ profit/emp) and on revenue: - Valve ($50M/emp) - OnlyFans ($37M/emp) - Craigslist ($14M/emp) - Anthropic ($12M/emp, run rate) - OpenAI ($8M/emp, run rate) For comparison, Nvidia is very efficient at scale and is $4.4M/emp.
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Babatunde Koiki retweetledi
@MzTaiwoO @Omolomo_o @hyrishdbigdeal Fashola started the Blue Rail Line, in 2010, and significant civil works have been done before handover in 2015.
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had a chat/review with @bkoiki950 where he advised using interfaces more so i decided to apply that today. i have also implemented creating the short url. need to do more on validation layer.
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i’m currently building a URL shortener in Go and it’s been quite the experience but i guess i can’t learn unless I do. so i’d like your honest opinion on my progress whenever you see this and tell me sincerely where (what) I could improve
github.com/ayopedro/seazu…
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Babatunde Koiki retweetledi
You don’t know how important it is to meet and be with the right person until you start to see the good fruits from that relationshop. The right person will impact your life, health, finances and well being positively. Choose right.
Tolu✨@toluwalope__
one day I’ll talk about how meeting my man changed the trajectory of my life for good in so many ways.
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Babatunde Koiki retweetledi
Babatunde Koiki retweetledi
Aliko Dangote: I applaud President Museveni for his bold decision to ban the export of unprocessed minerals. I also want to commit to the two presidents here that, with their support for the refinery, we will build a similar one in East Africa like the one we have in Nigeria.
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Babatunde Koiki retweetledi
Sometimes we just need to think deeper than we do. Did you know that this simple quadratic curve with its tangent is the core logic behind the Newton-Raphson method that we use to solve complex non-linear problems today?
The truth is: If you never struggled with this green graph paper, you would not know how to spot when a simulation is lying to you.
As a Master's student, I took a course on the Rheology of materials. This curve is part of the constitutive model we use to determine what type of property a material has.
Why does your toothpaste stay on the brush instead of running off like water? It is because of yield stress. The slope of these curves is what engineers study to make sure your paste only flows when you apply force to the tube.
This knowledge is a means to an end. You might not see the importance now, but if you study deeper and go higher in the STEM fields they are built for, you will see it.
abuja stylist✰@drharveee
Till today, I no see the importance of this thing.🤦
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Babatunde Koiki retweetledi
Now we have a real opportunity to track how our govt performs by personally documenting what they promised to fix.
How to use RECEIPT:
1. Click the Link below
2. Take a live picture of what you want to report
3. Fill the short form. That's it
1000reasons.vote/receipt
1/2
Adedayo Agarau@adedayoagarau
I've built a functional UGC map of Nigeria that tracks bad infrastructures, roads, ghost projects to the ward level in Nigeria. One map, one repo! So when they come and ask you for vote, you'll show them receipt of what they didn't do. Testing! Let's go 1000reasons.vote
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Babatunde Koiki retweetledi
this is x2 chibok girls.
i could remember how the whole country was when it happened then. now it seems like a normal story.
Nigeria Stories@NigeriaStories
BIG NEWS🚨: Boko Haram is threatening to mass execute 400 women and children they kidnapped in Ngoshe, Borno State, unless the Government pays $2.7M (₦3.7bn) within 72hrs. They dared the Nigerian Army to come after them.
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Babatunde Koiki retweetledi
There is a TOTAL BREAKDOWN of Law and Order in this country. JAMB is lying, CBN is lying, FIRS is lying, Senate is lying, Judiciary lying, all parastatals are lying because a lying thief is the president. Total nonsense!
Switch@prophetswitch
JAMB had to lie those children weren’t going to write jamb when they were kidnapped. The students had to come out on media with their jamb slips to show JAMB LIED‼️ Even Jamb is working for Tinubu and defending the APC We can’t continue like this 📍
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