Born in Türkiye raised all around the world. Data scientist, economist. @U North Texas.
Joined July 2019
- Tweets 2,496
- Following 780
- Followers 328
- Likes 1,642
811 Photos and videos
Jun 14
How not to play soccer and still win a game.
BREAKING: 🇦🇺 Australia beats 🇹🇷 Turkey 2-0
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Jun 13
Before Anthropic's Fable-5 was shut down yesterday, I used it to build this interactive isochronic map, inspired by @emollick's suggestion and adapted with a few ideas of my own. The map shades the globe in bands of equal travel time from various places.
proforhan.github.io/isochron…
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Jun 13
Very consistent with the historical trends.
BREAKING: SpaceX share price closes up 19% on first day of trading on stock market
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Orhan E retweeted
Jun 12
Those who celebrate @elonmusk's $1 trillion fortune need to be reminded of a simple and vital truth:
That there is a fundamental tension between extreme wealth and the very possibility of democracy.
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Jun 13
SpaceX’s performance was almost exactly the same with the historical facts.
Jun 2
Jay Ritter's IPO data (1980–2024):
- The average U.S. IPO gained 18.9% on day one,
- but underperformed the broader market by 20.5 percentage points over the next three years.
➡️Great first day, disappointing long run.
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Orhan E retweeted
Jun 12
SpaceX’s record-setting initial public offering, in charts: ft.trib.al/3kxR8kd
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Orhan E retweeted
Jun 2
Valuation matters.
Among IPOs with over $100M in sales, companies priced above 40× revenue jumped about 94% on day one.
Over the next 3 years, they lost ~45% and underperformed the market by 58.5 percentage points.
Spectacular IPOs often lead to disappointing long-term returns.
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Orhan E retweeted
Jun 2
Jay Ritter's IPO data (1980–2024):
- The average U.S. IPO gained 18.9% on day one,
- but underperformed the broader market by 20.5 percentage points over the next three years.
➡️Great first day, disappointing long run.
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Jun 2
SpaceX shares will begin trading publicly on June 11.
Anthropic has filed paperwork to go public, too.
OpenAI is expected to follow. A couple of things to bear in mind: (1/n)
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Jun 2
Jay Ritter's IPO data (1980–2024):
- The average U.S. IPO gained 18.9% on day one,
- but underperformed the broader market by 20.5 percentage points over the next three years.
➡️Great first day, disappointing long run.
1
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Jun 2
Valuation matters.
Among IPOs with over $100M in sales, companies priced above 40× revenue jumped about 94% on day one.
Over the next 3 years, they lost ~45% and underperformed the market by 58.5 percentage points.
Spectacular IPOs often lead to disappointing long-term returns.
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Mar 29
Hahaha. So funny :) @LaligaCoverage
I can name them all... but this is not the 1999/2000 season.
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Mar 28
I started to hate reading emails, most of which are swollen essays that can in fact be written in one sentence.
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30 Dec 2025
Is 𝗔𝗜 weird?
📊 Analyzing 21 chatbot variants, we find that AI models do not exhibit WEIRD (Western, Educated, Industrialized, Rich, Democratic) thinking patterns in financial settings.
#AI #LLMs #WEIRD #FinTech
authors.elsevier.com/a/1mKCd…
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17 Dec 2025
𝐖𝐚𝐬 𝐭𝐡𝐞 𝐂𝐎𝐕𝐈𝐃-𝟏𝟗 𝐧𝐚𝐫𝐫𝐚𝐭𝐢𝐯𝐞 𝐖𝐫𝐨𝐧𝐠?
I recently spoke with Stephen Macedo, Professor at Princeton and coauthor of COVID’s Wake.
youtu.be/OwfQy1-qya8
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8 Dec 2025
There are now more AI-generated articles published online than human-written ones.
The web is shifting before our eyes. It's time to pay close attention to what we read. Did you encounter weird cases?
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