Kostas Xiradakis

I just published “I’m joining VivaPayments! Here’s why” medium.com/p/im-joining-v…

@teslaeurope Do Greece 🇬🇷, too!

Tesla has been working hard toward shipping Full Self-Driving (Supervised) in Europe for over 12 months now. We have given FSD demos to regulators of almost every EU country. We have requested early access, pilot release programs or exemptions where possible. We have developed & shared detailed safety evidence for FSD, now public in our latest Safety Report. And we have driven over 1 million kilometers safely on EU roads across 17 different countries (internal testing).  Our main path to success is partnering with the Dutch approval authority RDW to gain exemption for the feature. This involves proving compliance with existing regulations (UN-R-171 DCAS) + filing an exemption (EU Article 39) for yet-to-be-regulated behaviors like Level 2 systems off-highway, system-initiated lane changes with hands-off the wheel etc.  Some of these regulations are outdated and rules-based, which makes FSD illegal in its current form. Changing FSD to be compliant with these rules would make it unsafe and unusable in many cases. While we have changed FSD to be maximally compliant where it is logical and reasonable, we won't sacrifice the safety of a proven system or materially deteriorate customer usability.  As a result, we are gathering evidence to get exemptions on a specific rule-by-rule basis. Unfortunately, the real world fleet-proven safety wins alone are considered insufficient.  Currently, RDW has committed to granting Netherlands National approval in February 2026. Please contact them via link below to express your excitement & thank them for making this happen as soon as possible. Upon NL National approval, other EU countries can immediately recognize the exemption and also allow rollout within their country. Then we will bring it to a TCMV vote for official EU-wide approval.  We're excited to bring FSD to our owners in Europe soon! rdw.nl/en/contact/our…

@COSMOTE Η απουσία υποστήριξης για eSIM transfer σε iPhone δυσχεραίνει τη μετάβαση συσκευών. Η ενσωμάτωσή του θα βελτίωνε σημαντικά την εμπειρία χρήσης και τη διαχείριση των συνδέσεων. 👎🏻

🎉 Huge congratulations to the entire Snappi team on today’s official launch! Snappi is now live across Greece — delivering a fully digital, transparent, and human-centric banking experience. As a licensed European neobank, Snappi marks a bold step forward for digital banking in the region. Proud that the Natech Banking Solutions platform powers everything from onboarding to payments, compliance & customer engagement. An incredible milestone — and just the beginning! 👏 Read Snappi’s official launch announcement: lnkd.in/en5eBZE8 @natechsa @Piraeus_Bank

Hi @sama - would love if ChatGPT could notice when a new chat overlaps with an existing one and suggest continuing there. I end up with duplicate chats on the same context.

Κάθε πότε απαντώνται τα αιτήματα στην εφαρμογή MyAttica; Τα εξετάζει κάποιος; Έχουν περάσει τρεις εβδομάδες χωρίς φανάρια. @perattikis

LinkedIn revamped its notifications management with some dark UX patterns. It now takes 100 clicks to disable all email notifications. Frustrating, unnecessary, and user-hostile 🤮 #UXfail #DarkPatterns

I’m at Stanford and I research software engineering productivity. We have data on the performance of >50k engineers from 100s of companies. Inspired by @deedydas, our research shows: ~9.5% of software engineers do virtually nothing: Ghost Engineers (0.1x-ers)

Everyone thinks this is an exaggeration but there are so many software engineers, not just at FAANG, who I know personally who literally make ~2 code changes a month, few emails, few meetings, remote work, < 5 hours/ week, for ~$200-300k. Here are some of those companies:

The CIA manual on disrupting activist groups largely explains most meetings in academia.

Μία εικόνα, χίλιες λέξεις. Άλλο ένα τραγικό και ταυτόχρονα εξοργιστικό περιστατικό. Άλλη μια φορά που το κράτος εμφανίζεται σαθρό στη γύμνια του και απολύτως ανεπαρκές στο να εκτελέσει τις βασικές υποχρεώσεις του απέναντι στους πολίτες. Ως πότε;

Τις τελευταίες ημέρες παίζει πολύ το γραφήμα του κατά κεφαλήν ΑΕΠ σε μονάδες αγοραστικής δύναμης. Κάθε χρόνο τα ίδια. Κοιτάμε το δέντρο και χάνουμε το δάσος. Αν συγκρίνουμε με τις χώρες της Ν. Ευρώπης, βλέπουμε μία μικρή πρόσφατη βελτίωση σε ένα μεγάλο διαχρονικό πρόβλημα.

@MicrosoftTeams Noticing a typing delay on iOS (iPhone/iPad) with mentions in large group chats. Happens every time. Can you check?

“Unraveling McKinsey’s Approach: A Guide to Problem-Solving for Product Managers” by Rohit Verma bootcamp.uxdesign.cc/unraveling-mck…

Tactics is what you do. Strategy is why you do it.

if i start going off, the openai board should go after me for the full value of my shares

Λαμβάνω τώρα τις πρώτες φοιτητικές πτυχιακές εργασίες που βασίζονται σε μεγάλο μέρος σε κείμενα του #ChatGPT. Καθότι η πολιτική του @AUEB είναι, καταλαβαίνω, υπό διαμόρφωση, να το κείμενο που ετοίμασα και στέλνω εγώ. Σχόλια ευπρόσδεκτα!

Almost all founders learn brutal lessons during the first year, but some learn them much more quickly. Obviously those founders are more likely to succeed. So it could be a useful heuristic to ask, say 6 to 12 months in, "Have we learned our brutal lesson yet?"

Good things can come up out of Greek tech. Congrats to the team and investors.