Lawrence Krubner 🇺🇸🇺🇦
@krubner.bsky.social
Helping health-tech startups, especially those with a focus on women's health.
I didn’t think anyone used Substack “Notes” (their Twitter clone) but look at the numbers of likes and comments on these totally ordinary notes.
December 19, 2025 at 7:17 PM
I didn’t think anyone used Substack “Notes” (their Twitter clone) but look at the numbers of likes and comments on these totally ordinary notes.
The British are very good at writing these types of stories where the hero just wants to stay home in the comfort of the Shire and drink tea and eat scones but for some reason they have to venture out and witness the evil in the world. In this case it’s a true story.
December 16, 2025 at 3:07 AM
The British are very good at writing these types of stories where the hero just wants to stay home in the comfort of the Shire and drink tea and eat scones but for some reason they have to venture out and witness the evil in the world. In this case it’s a true story.
Truly fascinating that Churchill felt he had more support from Labour than from the Conservatives, up until July of 1940. No doubt this was because Labour was strongly anti-fascist, whereas the Tories had fascist sympathizers. From “Their Finest Hour.”
December 7, 2025 at 8:51 PM
Truly fascinating that Churchill felt he had more support from Labour than from the Conservatives, up until July of 1940. No doubt this was because Labour was strongly anti-fascist, whereas the Tories had fascist sympathizers. From “Their Finest Hour.”
Unless they have pushed back the dates on the genus homo, then these would not be humans, but even earlier ancestors, sitting there, patiently, for 300,000 years, chipping away at the rocks, making tools.
November 22, 2025 at 8:50 PM
Unless they have pushed back the dates on the genus homo, then these would not be humans, but even earlier ancestors, sitting there, patiently, for 300,000 years, chipping away at the rocks, making tools.
These names are very difficult. In the West we have Emperors with names like “Charles V.” The use of numbers is such a time saver, compared to these names. (But “torching the mountain without assistance” is awesome as a description of self-Enlightenment.)
November 16, 2025 at 9:16 PM
These names are very difficult. In the West we have Emperors with names like “Charles V.” The use of numbers is such a time saver, compared to these names. (But “torching the mountain without assistance” is awesome as a description of self-Enlightenment.)
Again, there is the question why humans never came close to the Malthusian limit. And why were Neanderthals so rare? Compared to other species of the same (or larger) mass, we should have been more abundant. We are omnivores, we eat anything. Yet we were outnumbered by bison. Why?
November 13, 2025 at 4:36 PM
Again, there is the question why humans never came close to the Malthusian limit. And why were Neanderthals so rare? Compared to other species of the same (or larger) mass, we should have been more abundant. We are omnivores, we eat anything. Yet we were outnumbered by bison. Why?
I wish I could find a reliable way to explain this to entrepreneurs: early stage startups are unique. There are certain ways to limit costs, certain ways to cut corners in ways that are safe. All the fancy cloud auto scaling stuff is for when you have $5 million ARR.
November 8, 2025 at 3:05 AM
I wish I could find a reliable way to explain this to entrepreneurs: early stage startups are unique. There are certain ways to limit costs, certain ways to cut corners in ways that are safe. All the fancy cloud auto scaling stuff is for when you have $5 million ARR.
@julieblattberg.bsky.social @kattywren.bsky.social @lisachambers55.bsky.social this is what you’re missing because you are no longer on Twitter, where the real intellectuals hang out.
October 28, 2025 at 12:57 AM
@julieblattberg.bsky.social @kattywren.bsky.social @lisachambers55.bsky.social this is what you’re missing because you are no longer on Twitter, where the real intellectuals hang out.
Edek likes watching birds out the window. But he caught me spying on him.
October 19, 2025 at 4:16 PM
Edek likes watching birds out the window. But he caught me spying on him.
Walking home, over a pedestrian bridge. The World Trade Center in this distance.
October 18, 2025 at 1:19 AM
Walking home, over a pedestrian bridge. The World Trade Center in this distance.
I made my own focaccia at home. My cat Edek was interested, but he doesn't like onions.
October 5, 2025 at 7:13 PM
I made my own focaccia at home. My cat Edek was interested, but he doesn't like onions.
Culture as the evolution of humans.
September 17, 2025 at 8:31 PM
Culture as the evolution of humans.
Humans are unique for their focus? I am not sure about this. There is no amount of coffee that allows me to focus the way my cat focuses when he sees a bird.
September 14, 2025 at 2:16 PM
Humans are unique for their focus? I am not sure about this. There is no amount of coffee that allows me to focus the way my cat focuses when he sees a bird.
Today’s event was great. Thank you for joining us @julieblattberg.bsky.social
September 10, 2025 at 3:16 AM
Today’s event was great. Thank you for joining us @julieblattberg.bsky.social
This is suicide for the Democrats overall though maybe it will work in Colorado. But nationally, if the Jews develop the perception that the Democrats are anti-Jew then the Democrats will not ever again win Pennsylvania and that will make it very difficult to win the Presidency.
September 6, 2025 at 11:50 PM
This is suicide for the Democrats overall though maybe it will work in Colorado. But nationally, if the Jews develop the perception that the Democrats are anti-Jew then the Democrats will not ever again win Pennsylvania and that will make it very difficult to win the Presidency.
Representative sample of the responses I get, no matter what subject I write about. Could be sports, could be war, could be tech startups, I always get some variation of these 4 responses.
September 6, 2025 at 6:15 PM
Representative sample of the responses I get, no matter what subject I write about. Could be sports, could be war, could be tech startups, I always get some variation of these 4 responses.
I wrote this sentence to confuse the 2 meanings of "bat" to see how the LLM would handle it. This is the kind of sentence that would confuse the original LLMs of 2017. But here we see how far things have come since 2017,
September 4, 2025 at 3:52 PM
I wrote this sentence to confuse the 2 meanings of "bat" to see how the LLM would handle it. This is the kind of sentence that would confuse the original LLMs of 2017. But here we see how far things have come since 2017,
During the DotCom boom of the 1990s the big companies were desperate to get young talent, and the non-tech companies felt they had to offer a lot to win young folks away from the tech companies. Procter and Gamble advertised the fact that they were offering P&L (profit and loss) responsibilities to
September 4, 2025 at 12:31 PM
During the DotCom boom of the 1990s the big companies were desperate to get young talent, and the non-tech companies felt they had to offer a lot to win young folks away from the tech companies. Procter and Gamble advertised the fact that they were offering P&L (profit and loss) responsibilities to
It's not clear to me that Mamdani is, himself, a dangerous radical. What he tweeted 10 years ago, when he was 23, should not count against him. I myself wrote many stupid things when I was 23. And Cuomo is a sex offender, and he is corrupt. On a personal level,
September 4, 2025 at 11:44 AM
It's not clear to me that Mamdani is, himself, a dangerous radical. What he tweeted 10 years ago, when he was 23, should not count against him. I myself wrote many stupid things when I was 23. And Cuomo is a sex offender, and he is corrupt. On a personal level,
Why are customers so damn weird? The question was, "Are you able to attend my tech startup event on September 9?"
August 31, 2025 at 4:17 PM
Why are customers so damn weird? The question was, "Are you able to attend my tech startup event on September 9?"
Can you gain power by being an unethical leech who says whatever you think people want to hear? JD Vance is about to find out.
August 31, 2025 at 1:27 PM
Can you gain power by being an unethical leech who says whatever you think people want to hear? JD Vance is about to find out.
I have always liked Seth Meyers but now I like him even more.
August 27, 2025 at 9:28 PM
I have always liked Seth Meyers but now I like him even more.
Just as 1932 marked the beginning of the expansion of Federal government, by both Democrats and Republicans, I believe this marks the beginning of state ownership of industry in the USA. For the next 50 years, both Democrats and Republicans will expand ownership of companies. This could be good.
August 25, 2025 at 12:29 PM
Just as 1932 marked the beginning of the expansion of Federal government, by both Democrats and Republicans, I believe this marks the beginning of state ownership of industry in the USA. For the next 50 years, both Democrats and Republicans will expand ownership of companies. This could be good.