Joined September 2011
227 Photos and videos
Pinned Tweet
1/ If you’re a founder you’ve probably heard someone say “oh, I’ve seen this idea before - it didn’t work” or “isn’t this just like that other thing that person/company X tried?”
26
282
1,040
dude is living every founder's wet dream
Anthropic’s last round was apparently a bloodbath behind the scenes. A GP at a prominent fund had dinner with Dario three times before their allocation was slashed to zero. At least four other tier-one funds got pulled at the last minute. Their crime? Passing on the Series B, the hardest round Dario ever had to raise (led by Spark). In venture conviction is all that counts.
6
2
187
43,507
D’Arcy Coolican retweeted
Announcing Weekend Fund IV, backed by operators and founders (and maybe you). When we raised Weekend Fund III, we did something different. Toward the end of our raise, we announced the fund in public and accepted applications from LPs. Our goal was to make early-stage venture more accessible and align ourselves with an army of operators and founders to help us and the startups we back. Over 1,000 people expressed interest to join and hundreds did, but there was a problem. Legally, only accredited investors could participate as an LP. Accreditation laws are well-meaning but limit access to the majority of consumers. With WF IV, @vedikaja_in and I are doing something different. Like before, we’re onboarding engineers, designers, researchers, data scientists, salespeople, and other domain experts as LPs in the fund. But this time at a larger scale with USVC. AngelList recently announced USVC, a new kind of fund that’s accessible to everyone, including the non-accredited. It holds positions in private late-stage companies like xAI, Anthropic, OpenAI, Sierra, and Vercel. I personally invested. Today, they just announced their investment in Weekend Fund IV, one of the first early-stage funds added to their portfolio. If you’re interested in being a part of Weekend Fund and getting exposure to generational startups mentioned above, visit usvc [dot] com. Of course, don’t invest what you can’t afford to lose. Investing in startups is risky and you may lose all your money. USVC shares are illiquid with no guarantee of repurchase. Consider investment objectives, risks, charges and expenses carefully before investing. Read the prospectus: usvc [dot] com/prospectus. Also, USVC is currently limited to US citizens. They’re working to open the fund to other geographies. Lastly, my DMs are open. :)
98
44
592
102,683
can anyone connect me to someone @cohere for something urgent? 🙏 dms open i am trying to spend lots of money on their product, but it is proving difficult
6
6
672
seems like the tech zeitgeist is turning away from pure growth / $0-$100M in 45 seconds / momentum is the moat stuff to what true network effects look like now ive had more intelligent conversations about this in the last 3 days than in the previous 2 years. nature is healing
as the cost to produce software gets closer to zero, the value of a true network increases exponentially i guess im a boomer now, but im shocked at how few AI apps companies actually care about / understand network effects
1
6
1,086
D’Arcy Coolican retweeted

74
13
377
50,862
i can go on a long rant about what makes a good seed investor, but easier to just say that if you have the chance to work with @semil and @aashaysanghvi_, just do it. we did. excited to see them keep going.
Apr 26
[brief update] we have a new set of funds for @haystackvc announcing haystack 8 plus more, but it's really about my teammates @aashaysanghvi_ & @DivyaDhulipala thank you to all of our frequent ecosystem co-conspirators, our LPs, our co-investors, our founders. i'm very grateful 🙏 and this is the most fun role in the world! semilshah.com/2026/04/26/new…
3
612
D’Arcy Coolican retweeted
7 Feb 2023
1/ Sponsoring events can have a huge impact on customer acquisition and brand. Most companies do it wrong, though. Here’s how to have the biggest impact sponsoring an event without breaking the bank:
18
48
691
2,283,573
the value in great companies has always been in the network they build, not the software they build. it's just becoming more clear as cost of software goes to zero.
as the cost to produce software gets closer to zero, the value of a true network increases exponentially i guess im a boomer now, but im shocked at how few AI apps companies actually care about / understand network effects
8
1
12
1,321
D’Arcy Coolican retweeted
The annual Contrary Research Tech Trends Report is here. 350 slides on everything from computational intelligence to lunar bases to breakthroughs in biologics to AVs revolutionizing land use to the loneliness epidemic and so much more. Full report in reply.
51
72
519
155,100
any funds or companies I know want to sublet me a desk / office in the presidio?
6
8
471
VCs as kingmaker is complete BS and always fails. If someone tells you it’s true, they have their own agenda. In the end, founders decide which VCs they will make rich, not the other way around
13 Nov 2025
AI has given venture capital a new way to repeat an old mistake: kingmaking. The pattern from 2021 is back: a category becomes "obvious," a top-tier firm anoints its winner, and everyone else acts like the decision is final. Sierra for support. Harvey for legal. Applied Compute for RL-as-a-service.
8
6
117
21,314
the most destructive part of this myth is that some founders think a vc is going to save them. a VC isn't going to fix your biz or crown you the winner. you have to do it yourself. the sooner you acknowledge this the better.
7
512
as the cost to produce software gets closer to zero, the value of a true network increases exponentially i guess im a boomer now, but im shocked at how few AI apps companies actually care about / understand network effects
8
23
5,206
D’Arcy Coolican retweeted
Product design is one of the most misunderstood fields in tech. It’s not about polishing someone else’s idea. It’s about discovering what’s worth building. So we raised $3.2M to create Softlight: AI that discovers what to build. Great designers navigate business complexity to explore ideas, visualize them, and uncover new ones through iteration. The “aha” moment is realizing they don’t just make your idea better. They help you find the idea itself. That’s what today’s vibe-coding tools miss. They start with your idea and assume you should build it. Softlight starts with your business context to discover ideas you might not have thought of. Our design partners range from growth stage startups to Fortune 500s. Our team created products at Meta, Uber, and Citadel and we’re backed by product execs, CEOs, and founders at companies like Stripe, Airbnb, and Plaid. If you're interested in joining our NYC team, we'd love to hear from you. Link below.
27
22
356
53,611
Friend’s corp twitter account got hacked and is posting weird shit. Do I know anyone who can help?
2
1
447
this looks sick
🎉Beyond the Vale is OUT 🎉 GET IT NOW! beyondthevale.gg INSANE trailer with music by @BABYMETAL_JAPAN Get the entire season at 50% off this week only! Starring @MythicTalent streamers: @CaseOh__ @shylilytwitch @_Silvervale_ @Asmongold @nyannyanners @LordAethelstan @5uppps @FalseEyeD @extraemilyy @CyYuVtuber @saruei @viennavtuber #beyondthevale #mythictalent
2
4
870
i have no connection to this company, but i'm very much here for it. i wouldn't wish mold issues on my worst enemy. hoping this is just the start of real and accessible solutions for it
Three years ago I got sick from something most people overlook: mold exposure. Today, that journey comes full circle: we’re announcing MoldCo’s $8M Seed (total $11M), led by @cantos @collabfund, to build the new standard of care for mold and chronic inflammation. The mission is clear: to serve patients who’ve waited far too long for answers. To celebrate, we’re giving away 50 free lab tests. Comment “labs” to claim one and we’ll DM you!
1
4
892
D’Arcy Coolican retweeted
16 Sep 2025
My goal when I became a full time investor was to be the type of partner I would have most wanted during my time building a company: someone who had done the work I was doing before, who had the network to help me reach my goals faster, and who had my back no matter what. I’m really happy to share that we’ve raised Alt Cap II, a $275M early stage fund. We backed ~20 companies at Seed and Series A in Alt Cap I. The new fund will be the same structure with a bit larger checks. But mostly we just want to be in business with people who inspire us. There’s no way to say it without sounding cheesy but it’s true; I feel unbelievably lucky to do this job in the way I get to do it. A special thanks to the founders that let us back them in Alt Cap I, you all are what it’s all about for me!
202
50
1,228
255,204
i am so jealous that there is an othership in wburg. one of the best experiences out there. if you live in bk you should try it. you will def want to go back
This is the best piece of content ever done - it’s raw and captures the Othership experience. The haters say it’s culty, but its a masterpiece and will make you feel something. --- (use headphones, full screen, and MAX VOOLLLUMMMMEEE) Tag your NYC friends in the comments for a complimentary journey at our new Williamsburg location live today - or retweet your favorite Othership moment in a repost for a complimentary journey for you. I'll DM everybody that shares.
2
2
1,034
best $200 you will spend
19 Aug 2025
BREAKING: Superpower is now available for only $199 almost every American spends a few hundred $ per year on things like: – Netflix – Spotify – Amazon Prime – Dating or meditation apps – Annual credit card fees and never thinks twice. but there has never been an accessibly priced, canonical consumer membership for the most important thing of all: YOUR HEALTH. it’s our goal to build the most valuable, lowest price health membership in America. and now it’s never been simpler to get started: – full body health testing (100 labs annually) – one home for all of your health records, unified in one place – a personal health LLM to chat with and make sense of it all – plus a human medical team marketplace for anything you need, like prescriptions, supplements, tests, or health answers – all at 20% cheaper than elsewhere all for only $199. it pays for itself. it’s taking control of your health. “But Jacob — I have a bit more budget to spend on my health, this feels too cheap” feedback we get often. however it’s our belief the greatest consumer companies are built with low floors ⬇️ and high ceilings ⬆️; accessible enough to welcome anyone in, yet expansive enough to grow with those who want to invest more deeply. (eg. almost every American has an Amazon account, half of which pay ~$200/yr for prime, and 30% of which account for 70% of sales. our top superpower member has already spent over $30k on their health within the ecosystem) this moment has been a long time coming and couldn’t be more thrilled to unveil it to the world alongside such an incredible team. ps – we’ve also just launched the mobile app, DM if you’d like the test flight!
3
5
653