Jacob Singh

Building good. Dad, musician, climber, baller, CTO / investor.

[Jacob Singh @JacobSingh]

I learned this late in life:

Being confident doesn’t come from being tough and persevering. It comes from feeling safe to explore failure. Knowing you have a physical home to come back to - that there is enough - and an emotional home - that you are enough.

[Jacob Singh @JacobSingh]

@measure_plan This is amazing. We're building singing games. Would love for you to try them out. DM or sign up: https://t.co/F6d9Dh2WQx / https://t.co/uoplMYRF56

[Jacob Singh @JacobSingh]

And they just called me at 1130 at night...

Nice.

[Jacob Singh @JacobSingh]

Can't believe @urbancompany_UC...

Guy broke my RO, then the guy lied about it.

I complained.

Stonewalling AI bot, 2 hours and 3 callbacks later hours, then they assign a senior technician...

The same guy who broke it in the first place.

[Steven Liss @This_Liss]

Had a Jane Street phone interview in 2016. "Price a 6-month forward on carrots."
There's no carrot futures market, so I build one from scratch: seasonal harvest cycles, USDA demand elasticity, cold storage decay rates.
One trader stops me. "Your storage cost function– you're modeling the carrot as dead inventory. Like grain in a silo." He asks me the metabolic respiration rate of a post-harvest carrot at 2°C. I estimate.
"Your forward is overpriced by exactly that shrinkage. The underlying is consuming its own sugars. It's alive." Good correction. I adjust the model. I think I've recovered.
Rejection email comes the next morning. Subject: "Ethical Review." My framework, they write, "relied on the severance of the root organism from its growth medium." The question about respiration was a test. The carrot was still alive and I'd built an entire derivatives structure on top of its death without questioning whether harvest was an acceptable act.
I pull up the recruiter's original email. It doesn't say Jane Street. It says Jain Street– a non-violent quantitative commodities fund.
The carrot was never supposed to be priced. It was supposed to be refused. I later learn the only candidate who passed that round was a former monk from Gujarat who sat in silence for eleven minutes and said, "I cannot put a price on life." He's now a partner.

[Jacob Singh @JacobSingh]

I know no one sees my shit anymore, because I am against genocide, but I really miss @twitter.

[Jacob Singh @JacobSingh]

Let's assume there are 30 flights. 15 of them are around 15k, and 15 of them are 18k+. I'm not going to pick the 2nd half.

But the first half should be ordered by departure time, not by price, because 200/300 here and there is pointless as a sort criteria.

Best is not best for me.

[Jacob Singh @JacobSingh]

A feature I want Google Flights to have: "around the same price"... you are sorting by price for a 500rs difference.

I don't care. Everything within 1k is the same price to me. I want timing and airline after that.

[Sony Thăng @nxt888]

58,000 Americans died in Vietnam.

Over 3,000,000 Vietnamese died.

And for fifty years, American culture has centered the grief of the 58,000 while treating the 3,000,000 as a backdrop.

As scenery. As context. As "the Vietnam War experience."

They built a wall in Washington with American names on it.

A beautiful wall. A solemn wall.

Good. Mourn your dead.

But understand what that wall does not say.

It does not say why they died.

It does not say what they were doing there.

It does not say what was done in their name to the people whose country it actually was.

It does not mention My Lai, where American soldiers massacred an entire village, old men, women, children, babies, and the officer who ordered it served three years of house arrest before being pardoned.

Three years. House arrest. Pardoned.

For five hundred people murdered in a ditch.

It does not mention the 2.7 million acres of Vietnamese forest doused in Agent Orange, a chemical weapon disguised as herbicide, that is still deforming Vietnamese children today.

Not in 1970. Not in 1985. Today.

Children born in 2020 with bodies twisted by a war their grandparents fought.

And the chemical companies that made it are still in business.

Still profitable.

Still un-prosecuted.

And yet they send us human rights reports.

They grade our democracy.

They warn us about our behavior.

The audacity is so enormous it becomes almost impressive.

Almost.

[Jacob Singh @JacobSingh]

Don't disagree on what is happening, but there's a counter argument too: Most code is over-engineered for user problems that don't exist or don't exist yet. Sloppy but quicker iteration is leading to more innovation and delight right now on balance.

Does that mean you should YOLO a banking system upgrade? No. It does not.

[Jacob Singh @JacobSingh]

@grok @ThePrimeagen @cdev_h

[Jacob Singh @JacobSingh]

@FiliusGrok @AJENews Bot

[Jacob Singh @JacobSingh]

All my experience playing "Keep talking and noone explodes has prepared me to be a claude code superstar"

[Covie @covie_93]

FUN FACT: Less construction was done on the Taj Mahal than on Laura Loomer's face.

[Jacob Singh @JacobSingh]

@shaunmmaguire @sequoia ... why?

[Jacob Singh @JacobSingh]

Using shitty internet is the opposite of variable reward.

[Jacob Singh @JacobSingh]

@shaunmmaguire @mehdirhasan Although there is no evidence of cheating at mass scale found by any investigators and what little cheating exists would have never influenced any outcomes.

But there is substantial evidence Trump tried to cheat and encouraged a coup.

[Bishop Talbert Swan @TalbertSwan]

Ketanji Brown Jackson graduated magna cum laude from Harvard-Radcliffe College and cum laude from Harvard Law School where she was an editor of the Harvard Law Review. She had 20 years experience as a lawyer and 10 years experience as a federal judge when she was nominated for the Supreme Court.

They called her a DEI hire.

Mark Wayne Mullin has a high school diploma and a 2 year community college degree in construction management, no military or law enforcement service, and was a cow-calf rancher. He was nominated by Trump as the secretary of Homeland Security.

They have the caucacity to call this meritocracy.

[Jacob Singh @JacobSingh]

Sometimes I feel like @claudeai code is intentionally asking too many stupid permission questions so I get frustrated, run it YOLO mode and it takes over my computer.

[Jacob Singh @JacobSingh]

@Jon_Snowflaked I got 99 problems

[Jacob Singh @JacobSingh]

If you were offering a karaoke machine that could only have 5 songs on it - what would you put?