Mark Jansen (@markjansen10) header
Mark Jansen (@markjansen10) profile picture

International and global policy comms at Stripe. Previously Google, and a few other places. When not working: 🚴‍♂️🏃‍♂️🎸📚🏕️ 🥾👨‍🍳.

The Netherlands, Brussels
Joined June 2009
Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)Photo by Mark Jansen (@markjansen10)
🇨🇦 Canada’s message to russia: You don’t get to bomb Ukrainian cities and then send your juniors to play hockey in Alberta like civilised people. No Russian or Belarusian teams at the World Juniors. Not under your flag. Not under any other. Period.
829
6,062
282
29,875
420,379
Mark Jansen retweeted
General Matter CEO @ScottNolan joined me to break down why enriched uranium is the bottleneck for nuclear power. We get into why US nuclear fuel comes from Russia; their enrichment facility in Paducah, Kentucky; applying the SpaceX playbook to heavy industry; and the reasons nuclear became expensive. 00:00:00 Introduction 00:00:41 America’s missing nuclear fuel 00:05:27 Why small reactors need stronger fuel 00:11:42 Can nuclear power the AI buildout? 00:15:25 Why nuclear became so expensive 00:22:24 The startups reinventing nuclear 00:25:31 General Matter’s race to 2030 00:29:44 Stripe Press’ new books 00:30:22 The SpaceX playbook applied to nuclear 00:35:18 Uranium enrichment, explained 00:45:53 How small startups beat stagnant incumbents
14
44
12
371
51,996
We have intel that Russia is preparing a new massive attack on our country – primarily targeting energy and logistics. The assumption is basically that tomorrow the world will be watching the American midterms, and what is happening here in Ukraine, along with our difficulties with air defense and Patriot missiles, will be overlooked. We need signals from the world to Russia that will make them feel that terror is no good, that it will bring no gains, and that as long as this war continues, their oil will burn, and they will not be able to make money doing business with the world. We must not play games with Russia’s oil or gas revenues. We must put pressure on Russia in such a way that it has no alternative but to end this war. America can do this.
9,081
11,151
775
40,852
1,904,833
An utterly horrific Russian attack on the settlement of Komyshuvakha in the Zaporizhzhia region. Since this morning, the settlement has been hit several times by aerial bombs. The strikes targeted a school used for humanitarian purposes – people were receiving humanitarian aid there. After the first aerial bomb strike, there was a double-tap strike with nine more bombs, specifically targeting the shelter where people were taking cover. Tragically, 18 people have already been reported killed. My condolences to their families and loved ones. Five people have been injured. A rescue operation is underway at the site, and the search for people continues. It is extremely difficult. Military forces, first responders, and special services are involved. The Russians could not have been unaware that every week, local residents who had remained in Komyshuvakha received humanitarian aid at that very location. And this is further proof that Russia wants no de-escalation and no real justice. After the humanitarian operation in Oleshky, there was a moment when the next steps could have shown that progress toward peace was possible. With these killings, Russia is sending an entirely opposite signal: Russia is counting on more killings. There must be a response to this – a response from the world. A strong and tough response. A response to Russia. And support for Ukraine. We must protect lives. Thank you to everyone who is helping!
1,388
6,203
415
16,811
515,955
Mark Jansen retweeted
I cannot tell you how bullish I am on Stripe in the agentic era. They are the ONLY connector inside Grok Bot that have the kind of granular permissions + human-in-the-loop prompts I *expect* for agents. Every other connector - like ones from Google for eg Gmail or Docs - feel hopelessly amateur. Like WHY do I not have a way to have the Gmail connector ask for this kind of user permission before it lets an agent read any *sensitive* emails like password reset ones etc. Stripe ygmi and I have no idea why others are not copying the very least what Stripe does
172
49
38
1,508
103,264
Mark Jansen retweeted
[Take into account that member states did not really want you to know those details nor see them..We're the first to break the news & we are the ones who pushed for this!] Slovenia (SI) seem to have literally copied the text provided to them by the notary lobby when criticizing art 15th (digital registry): 2/9
14
15
12
226
22,716
Mark Jansen retweeted
.@stripe is bringing together a small group of solo and indie founders to cowork in Bali from Nov 15–21 🏝️ you'll have plenty of unstructured time to exchange ideas, get feedback, and build alongside one another. we have a few spots left, DM me or @JessLozanoS if you're interested
I met more people in the last 3 days than in the last 3 months 😂 Stripe should host a regular hackathon or residency where we build and monetize startups. I’d love to watch that kind of content. Thanks @jrfarr for the NA Guinness Thanks @caitbhri for organizing everything Thanks @edwinarbus for showing us Cursor’s office Thanks @stripe for featuring solopreneurs at Sessions And thanks to all my indie friends I got to meet IRL. Everyone is even more awesome IRL than on X ❤️
32
7
4
146
11,518
Mark Jansen retweeted
OpenAI’s @sama joined me at the pub (and had his first Guinness) to discuss the PHP exploit, math weekend at OpenAI, agent swarms, and how he thinks AI leads to deflation.
129
151
58
2,142
357,096
we're making Stripe Residency happen!! bringing together a curated group of indie hackers and bootstrapped solo founders to spend a week building in Bali with the stripe team (nov 15–21). if you’re a stripe user and want to learn more, reply with why you're interested or dm @caitbhri or myself
I met more people in the last 3 days than in the last 3 months 😂 Stripe should host a regular hackathon or residency where we build and monetize startups. I’d love to watch that kind of content. Thanks @jrfarr for the NA Guinness Thanks @caitbhri for organizing everything Thanks @edwinarbus for showing us Cursor’s office Thanks @stripe for featuring solopreneurs at Sessions And thanks to all my indie friends I got to meet IRL. Everyone is even more awesome IRL than on X ❤️
40
6
6
154
14,457
New @Stripe Economics post from @llamamrama on the AI gaps b/t the US & the EU. The US leads on aggregate AI revenues & consumer adoption. But dive more deeply & the picture is more nuanced, with US-EU gaps closing or even reversing along some measures. stripeeconomics.com/p/europe…
2
15
50
8,537
Mark Jansen retweeted
British AI application companies are only lagging behind American ones by revenues by about 50%, adjusted for nominal GDP. European ones are at 20%.
7
15
1
179
10,068
Mark Jansen retweeted
Tomorrow on Cheeky Pint: @sama of @OpenAI
92
101
26
2,474
232,266
Mark Jansen retweeted
We at Stripe Press are looking for a new Managing Editor, based in New York City. Come and join the most exciting publisher in business.
I’m hiring an NYC-based Managing Editor for @stripepress. The ideal person for this role has substantial editorial experience at a publishing imprint or another publication and is fluent in our universe of ideas, but ideally isn’t my (or our) ideological twin. Stripe Press is a small team with an unusual amount of autonomy. Right now we’re obsessively focused on the future: expanding our catalogue, rethinking our assumptions about the kinds of books we publish (fiction!?), and thinking about how to connect our readers w/ one another beyond the pop-ups we’ve been hosting since 2022. Hoping to meet a lot of brilliant people who love books and are excited about building a world-class publishing institution: stripe.com/careers/listing/m…
7
63
5,869
Mark Jansen retweeted
Introducing 'stripe pay', for instant business-to-business transfers. Find companies using their Stripe profile handle and send funds for free. Available in the Dashboard and CLI.
191
265
309
3,519
836,148
A few of you have asked: yes, we built the @link balance using @privy_io for wallets, @tempo for stablecoins, and @stripe for onramp. (The magic of crypto is when you never know.)
35
28
4
364
22,676
Mark Jansen retweeted
You misspelled “Russia”.
What’s actually going on in Ukraine is that there is a massive incentive difference between the elites and the people. The former have grown very rich off the hundreds of billions flowing to Ukraine, while the latter’s children are conscripted to die in trenches.
508
2,397
58
22,923
522,916
I’m speaking at the launch of Wij Willen Groei, the Dutch pro-growth movement, next week Thursday. If you’re in Amsterdam, you should join us.
Replying to @wijwillengroei
We beginnen op donderdag 29 oktober, precies een jaar na de verkiezingen, vanaf 19.00 uur in Amsterdam. Zorg dat je erbij bent en praat mee met o.a. @jortkelder, @LawrenceNewport en @PieterGaricano. Bouw mee, pionier mee: wijwillengroei.nl
4
6
3
36
2,725
Mark Jansen retweeted
When you hear Trump's team brag about how much they have given to Ukraine, here are the actual numbers.
330
3,009
178
6,292
299,662
Mark Jansen retweeted
"Russia, frankly, has been fine on Ukraine. They haven't been doing much." - President Trump, earlier today
A horrific Russian strike in the Kharkiv region. A “shahed” struck people directly – in a park near an ordinary café. Pure atrocity. Six people were killed, including children. A little girl was killed in a stroller – her name was Angelina, she was just over a year old, born in August 2025… Her mother’s name was Inna. She died in the hospital… Another girl who was killed was 11 years old. My condolences to their families and loved ones. Another 14 people were injured, including six more children. I am grateful to everyone who supports Ukraine under these circumstances and helps us shoot down “shaheds,” shoot down missiles, and stop Russian assaults. These are horrific photos, but behind them are shattered lives and the truth about this war. Lives must be protected. Ukraine needs air defense. You can't think about making money with Russia as long as it continues its asinine war. We ask that sanctions on Russia stay in place as long as the killings continue. We ask America to be strong, and we ask it to apply the Lindsey Graham law. We ask Europe to continue its support. We ask that everything possible be done to bring peace and guarantee security. Ukraine wants peace. It is Russia that has insisted on continuing the killing all this time. The world has enough strength to stop the war. That strength must finally be used – against the murderers.
415
2,096
68
8,755
164,448
Mark Jansen retweeted
The @stripe mcp server (and cli) is quickly becoming a business factory. With mcp.stripe.com your agent can... - Help you form a company via @atlas - Build your integration and start accepting payments - Manage funds with Treasury - Handle customer support inquiries - Monitor your business performance Read more about how you can go from idea to company with just a prompt: stripe.dev/blog/go-from-idea…
19
19
5
197
25,913