I put the same prompt into ChatGPT, Claude, and Grok to compare and the results were hilariously different. 𝗦𝗲𝘁𝘂𝗽: 🏃 I stated that my goal is to rapidly improve my 5K time by the end of the year. I asked them to be my coach and help me estimate both my training paces and

5 years later, getting messages like these still never gets old ❤️

"The way to get startup ideas is not to try to think of startup ideas. It's to look for problems — preferably problems you have yourself." - Paul Graham A few years ago, my cofounder and I were in the middle of a brutal fundraising stretch. Dozens of investor meetings, constant

I have a hard time understanding why Google makes it so difficult to explore and try out their new products. They drum up excitement in the community around a release and then prevent people from using and sharing what they've created, preventing any momentum from building

One area that seems to stump even the latest OpenAI and Anthropic models are spatial reasoning questions. For example, take this somewhat advanced high school geometry question, the models struggle to get to the correct answer

The book that’s influenced my thinking most in 2025 is "Alchemy" by Rory Sutherland . His core insight is simple but profound: Humans are irrational. So why do we keep designing products using rational frameworks? That idea hit especially hard as I reflected on how we built

Nizzy Vimcal till the day I die (shoutout Michael Zhao John Li who're amazing)

observation- NYC has become the best tech hub if you're not on the west coast. We've seen it in the numbers. You might know that a16z helps organize NY Tech Week -- we just announced the calendar today, with 800+ events -- and a16z will be hosting a ton of stuff all week.

We’ve just rolled out 7 quality-of-life updates that we hope will be a pleasant improvement for you! What’s new: 🗓 1) Scheduling Assistant 2.0 Critical attendees — You can now mark which attendees are the most important with a star, which will calculate mutual availability

"Cold calendaring" is becoming more and more of a problem. This is when people: • Throw sales meetings on your calendar without ever talking to you • Add you to webinars using email lists they purchased • Schedule a "chat" through your booking link they found somewhere online

Apps I love lately: @superhuman for email Vimcal for calendar Scrivener for writing Wispr Flow for dictation Grok for AI Notion for second brain Canva for graphics Clay AI for data brain.fm for white noise

Apparently Yelp has a bug where if you make a reservation without an email, they'll send the confirmation to the first match with the same name. I just got another Michael Zhao's reservation lololol I hope you enjoy your Osha Thai on Tuesday!

new obsession, Vimcal tells me when a calendar invite was created

I'm happy to share that @Vimcal is now HIPAA compliant! Alongside SOC 2, GDPR, and ISO 27001, this makes us one of the only enterprise-grade calendar solutions on the market, trusted by teams handling sensitive data across healthcare, the Fortune 500, and beyond. If you're at a

I've been dying to share our newest feature in @Vimcal that you won't find in any other calendar: You can now see how often your meetings have been rescheduled! The truth is, some meetings just don’t want to happen. Now, at the bottom of your calendar events, you can see how

One of my favorite Perplexity use cases is dropping a description or even screenshot and asking it to find relevant youtube videos 🤌

🌐 We've got another new feature for you today that you'll only find in Vimcal! Now when you look up your coworkers' calendars, Vimcal automatically sorts everyone by their local time so you can immediately see how everyone is spread out. You can then overlay everyone's time