X / Twitter
Box CEO Aaron Levie
Aaron Levie identified a central challenge in deploying AI: even the most advanced models cannot know in advance everything required for each user's specific situation, because use cases and workflow designs differ. As AI moves deeper into business processes, he expects this “domain knowledge gap” to become an increasingly important bottleneck. Solutions must extend beyond the model to personalized knowledge injection.
https://x.com/levie/status/2040650799550722243
Y Combinator CEO Garry Tan
Garry Tan announced that GStack fixed 14 security vulnerabilities through community collaboration, half through community PRs, demonstrating the strength of open-source collaboration. He continues pursuing his “L8 software factory” vision, improving adaptive, intelligent code review. He also called for “legalizing self-driving cars” and celebrated the arrival of an “open-source golden age,” with one post receiving nearly 4,000 likes.
https://x.com/garrytan/status/2040658880586522783
https://x.com/garrytan/status/2040667535490863254
https://x.com/garrytan/status/2040891664617848993
Replit CEO Amjad Masad
Amjad Masad showed an interesting use of the X API with Replit: community developer Tanner Braden combined Replit with X's live data stream to build a visualization app for NASA's Artemis II mission. He also recommended an article on the entrepreneurial mindset and posted Easter greetings.
https://x.com/amasad/status/2040918650245578906
Andrej Karpathy (AI Researcher)
Karpathy observed that comments on GitHub Gists are surprisingly good: thoughtful, constructive, and relatively free of AI-generated content. He speculated that this might reflect the community, Markdown format, or commenters' incentives. He said he should publish more through Gist and joked that GitHub could compete with X.
https://x.com/karpathy/status/2040806346556428585
Vercel CEO Guillermo Rauch
Guillermo Rauch used v0 to create a physics simulation of a flag on the lunar surface, combining cloth simulation through a particle-spring mesh, gravity, wind, and air resistance. v0 generated the base in one shot, and iteration made the result quite realistic. He also described how user feedback on X continually shapes Vercel's product direction: “Vercel gives us speed; X gives us user feedback.”
https://x.com/rauchg/status/2040822340532236565
https://x.com/rauchg/status/2040879055990632715
FPV Ventures Partner Nikunj Kothari
Nikunj Kothari captured the rhythm of AI-assisted development in a concise routine: see a new skill or feature → send it to Claude Code to judge whether it is worth implementing → have Codex review the plan → code → iterate → repeat. It neatly describes how many AI builders now work.