Rein
rein.pk · Personal blog · on HN since 2012
Rein writes about startup finance, management, education, regulation, and energy topics such as thorium reactors.
What HN saysHN commenters recommend his posts on replacing middle management with APIs and on thorium, and link his startup finance series.
31HN people shared it
11linked it in comments
27stories submitted
2.3Kstory points
12 months agolast shared
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Most-shared posts
- 1Gravitational Lensing to Observe Ancient Earth7 people · 282 points · first shared 2013 · 64 comments on HN
- 2Startup Finance for Founders – Part I, Accounting (2016)6 people · 224 points · first shared 2016 · 20 comments on HN
- 3Replacing Middle Management with APIs5 people · 370 points · first shared 2015 · 227 comments on HN
- 4Finding Product Market Fit4 people · 107 points · first shared 2016 · 18 comments on HN
- 5Over-regulation is doubling the cost3 people · 350 points · first shared 2025 · 688 comments on HN
- 6Thorium Reactors3 people · 330 points · first shared 2013 · 126 comments on HN
- 7Online Education's Dirty Secret - Awful Retention2 people · 197 points · first shared 2013 · 159 comments on HN
- 8Segment (YC S11) CEO on using a shadow budget to eliminate bureaucracy2 people · 2 points · first shared 2016 · discussion on HN
- 9Thorium1 people · 345 points · first shared 2012 · 110 comments on HN
- 10MVP Doesn't Mean Anything1 people · 44 points · first shared 2014 · 28 comments on HN
- 11Milestones for SaaS Companies1 people · 28 points · first shared 2015 · 4 comments on HN
- 12Better Email Search1 people · 7 points · first shared 2012 · 3 comments on HN
- 13Radioactive.js1 people · 6 points · first shared 2013 · 1 comments on HN
- 14Who Will Win in Self-Driving Cars1 people · 2 points · first shared 2016 · discussion on HN
What HN people wrote when they linked it
largbae · 2025-11-22
I love that this is just above the post on https://rein.pk/over-regulation-is-doubling-the-cost
It's almost as if the world is complicated and every issue has multiple perspectives.
Good luck "aligning", AGI.
CiceroCiceronis · 2021-06-15
Reminds me of this excellent article: https://rein.pk/replacing-middle-management-with-apis
freshfruit · 2013-04-03
The last paragraph seems particularly noteworthy:
On whether he's taken a MOOC class: "I've never made it through a complete MOOC," Thrun confessed. Much as books have been shrunk down to the size of 140 character tweets, Thrun says he expects that we'll continue to compress education.
"I believe that 50 years from now, education will be as short and sweet as Twitter is today. It will be like an evening talk. And that will be a fantastic moment."
Could this be a solution to the engagement problem in education that pkrein recently discussed:
http://rein.pk/online-educations-dirty-secret-awful-retention/
josh2600 · 2013-01-25
Congrats on hitting TC.
If you guys haven't read Peter's piece on Thorium it's worth noting that these guys aren't just about analytics: http://rein.pk/thorium-reactors/
AliCollins · 2024-07-26
And the link to the Part II, Strategic Finance: https://rein.pk/startup-finance-for-founders-part-ii-strategic-finance
drc500free · 2022-08-16
Adding to this, Peter Reinhardt's post on replacing middle management with APIs. Hollowing out the middle of the career ladder may have a different impact than the historical automation of entry-level jobs.
https://rein.pk/replacing-middle-management-with-apis
arikr · 2018-10-05
The comments in this article are odd. The process of getting a credit card for a startup is pretty bad -- see the section on "credit cards" here https://rein.pk/startup-finance-for-founders-part-i-accounting
Brex seems like a meaningful improvement over that.
hammerandtongs · 2015-03-16
I think it's pretty foolish that most programmers assume they will always be "working above the api".
http://rein.pk/replacing-middle-management-with-apis/
edit: To clarify, I think AI is the wrong question it's a question of the layers of abstraction and where it puts you in the labor force. Who cares what inhuman force is telling you what to do or how fast to do it?
thret · 2015-03-07
Yes, it is possible, but we'd need better telescopes. This post has a pretty good analysis: http://rein.pk/gravitational-lensing-to-observe-ancient-earth/
gd1 · 2013-08-06
Black holes are capable of bending light back towards us:
http://rein.pk/gravitational-lensing-to-observe-ancient-earth/