@MTsireud Profile picture

Mark Tsirekas

@MTsireud

startups, product, software

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As complexity moves from coding to thinking, PMs and engineers will simply be me prolific. There's only so much to think, polish, scale. P.s. super IC does not work in "big" tech.

Y’all think I’m trolling when I say PMs are cooked, but I demoed my prototype building process in < 10 mins and was told: “uh, we built that feature and what you showed took our team 2 weeks to do.” While y’all are arguing about how AI “will never,” we’re out here building.



Great insights

At the moment, we don't know how much prices will go up as a result of tariffs. There are a lot of conditionals. But if the goal is raise the cost of imports so that people are encouraged to buy American-made goods, I want to tell you a story. 🧵



Mark Tsirekas Reposted

Για να βγάλεις άκρη στην ΕΛΣΤΑΤ θέλεις διδακτορικό, η πλατφόρμα e-Καταναλωτής δεν έχει ιστορικότητα και η υλοποίηση του προϋπολογισμού του Δήμου Αθηναίων βρίσκεται σε μια ιστοσελίδα που κανείς δεν ξερει πως ανανεώνεται. Γι' αυτό φτιάξαμε το DataForGreece dataforgreece.com


Chasing the "current thing" leads to inauthenticity, and irrelevance. Applies to writers, creators, startups and corporations alike.

He can’t keep getting away with this

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Have you tried apple intelligence?

this is the worst feature apple has ever built

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chatGPT going after search and browsing is cute. I think they should stick to b2b productivity use cases. I like the Perplexity pro search for that reason. showcases where the revenue will come from. Won’t be ads.


Whilst funny Google AI overviews are actually improving and reinforcing the search moat.

Google AI is crushing it

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Interesting take. One of those were if it works, it's big.

Short all the structured CRM companies... a personal example with NotebookLM.

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εν τω μεταξύ έχουμε τον ~ ιδιο αριθμό στην Ελλάδα

Makes you wonder why the UK needs 513,205 civil servants. With an average salary of £33,980, that's quite the expense to the British tax payer.



Another example of PMF but too small for VC. Arc was building a cool product people liked. Now they're forced to pivot to chase the AI tailwind and their $550m valuation.

Arc hard pivoting after 4x daily user growth is interesting. My bet on what they realized: 1. The personalized software market is small. Volume-wise. Normies really don’t care about customizing their browser (design twit as an audience doesn’t scale) 2. Building for a small…



"notion trades simplicity for ai dreams and a mailbox" VC forces speed which startups glamorize but sacrifice patience, the thing that Apple has mastered. Notion & many others are indeed more complex and more confusing, in chasing the next tailwind.

i was wrong about indie startups. i can explain in 2 minutes. i've been thinking a lot about arc browser lately. it's probably my favorite piece of software built recently. but they just announced they're building a new ai-first browser. the original arc is basically on life…

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Conversely, if you're 30+ and established, you have exceptionally few reasons to join a startup. 1. You're obsessed about the problem (consider founder here). 2. You are investing in the Co with your time. 3. Money is not a thing for you and you work for fun.

.@rabois on the most important lesson he learned from Peter Thiel: You can’t hire anybody over 30. “Peter might not say it exactly the same way today, but basically, what he was trying to say is this: by the time you’re 30, everyone on the planet knows how to assess you pretty…



In Athens for a few days and truly worried by how old the population is vs London.


Getting burned by a “sure thing” startup is a rite of passage for becoming a smarter investor or exec choosing where to work.


Perplexity's new code interpreter shows where AI search shines—handling complex, iterative tasks like market research, not casual Google searches. Google will keep consumer ad revenue, AI search will own search for productivity.

now, you can make delightful charts on perplexity code interpreter!

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Real take: perplexity will end up a verticalized productivity tool OR be acquired bc: a) search en masse (ads) = simple queries. e.g. mens loafers b) value delta will reduce once google launches AI overview fully. c) scaled costs & infra. Incumbents deal with it better.

Wow what a difference between @perplexity_ai and google

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"AI that motivates people that work for you" - business that got funded recently. Y'all see the problem with that right


new low power model on sequoia beta 5 is incredible.


Seems Huxley got it right

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Coding, IDE, Docs, Artifacts, Computer vision, Web Scraping, Agents... u name it. Open AI is coming for it all.


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