Arthur Katcher

Harness Engineer // building agentic infra and chasing the singularity // 1x Acquired • CTO @QORIS_AI

📩 DMs open for advisory · Europe CET · remote

[Arthur Katcher @arthurkatcher]

https://t.co/6CMRSQ0827

[Arthur Katcher @arthurkatcher]

@paularambles I have another agent read the artifact for me

[Arthur Katcher @arthurkatcher]

@theNashef @garrytan wouldn't surprise me

[Arthur Katcher @arthurkatcher]

We made it chat

Garry the tan @garrytan has blocked me after I've shown how YC turned into a pro-war fund, and is fueling money into startups that damage lives on various frontlines.

Getting in the block list of Garry is an honor on its own.

The guy is the first one to go into public trash talk and spit his opinion on unfavorable (to him) politicians and SF supervisors.

But when the table turns, and critique goes the opposite way - he’s the on that ban button, hitting that thing fast.

My stance stays the same: YC in 2026 is not what it used to be, and the downfall has happened on Garry’s watch.

[Arthur Katcher @arthurkatcher]

@amyfriar_ @garrytan I’m the new kid in town

[Arthur Katcher @arthurkatcher]

@ericdmchugh0 @garrytan Getting that g block across g spaces

[Arthur Katcher @arthurkatcher]

Original post: https://t.co/FaU8PhIxTD

[Arthur Katcher @arthurkatcher]

Garry Tan may be the worst YC CEO.

And he’s definitely the one that has brought the most harm to the world.

Garry is the first ever ycombinator CEO to invest in (what they call) defense startups.

Since 2023, YC has invested in more than 65 startups affiliated with defense, growing year over year:

• 2023: 5
• 2024: 13 (including Ares, cruise missiles)
• 2025: 23
• 2026: over 24 and more coming.

One cannot help but notice how that correlates with the timeline of Trump’s second administration.

You need to ask yourself: where does YC itself take the money from?

Whose interests are they promoting with all of their investments? What’s on the agenda?

And the agenda is as clear as day. Invest money in war.

They’re ready to rename Department of Defense into Department of War, but startups are for the defense. Yeah.

a couple of examples from the list of their recent “defense” endeavours:

1. Polemos, F26
16 year old juvenile makes guided missiles cheap with AI. Their demo showed and boasted a direct impact with ground troops.

Heavily reminds me of Ender’s Game.

2. Seeing Systems, W26
AI-commanded autonomous strike drones for frontline military deployment.

3. Greypoint Industries, S26
Drone-swarms to “hunt hidden enemies”.

And dozens of other war oriented startups like that.

Not with PG, not with Sam, but with Garry.

The same money that go into cozy sandbox startups, now are used in Ukraine / Middle East to damage and destroy lives.

Still want to submit that application?

YC in 2026 is not what it used to stand for.

Think where you are truly getting your money from, and who are you letting into the control of your company.

[Arthur Katcher @arthurkatcher]

We have to speak up. I’m against warmongering that happens in the world, and against the people who keep fueling it.

I strongly believe we as people need to start opposing those tech dudes and politicians telling us that’s it’s normal to have separation.

proudly joining the club

[Arthur Katcher @arthurkatcher]

@sheriffly @paulg And now we have all of those trump-ish tech investments going on

[Arthur Katcher @arthurkatcher]

Garry Tan may be the worst YC CEO.

And he’s definitely the one that has brought the most harm to the world.

Garry is the first ever ycombinator CEO to invest in (what they call) defense startups.

Since 2023, YC has invested in more than 65 startups affiliated with defense, growing year over year:

• 2023: 5
• 2024: 13 (including Ares, cruise missiles)
• 2025: 23
• 2026: over 24 and more coming.

One cannot help but notice how that correlates with the timeline of Trump’s second administration.

You need to ask yourself: where does YC itself take the money from?

Whose interests are they promoting with all of their investments? What’s on the agenda?

And the agenda is as clear as day. Invest money in war.

They’re ready to rename Department of Defense into Department of War, but startups are for the defense. Yeah.

a couple of examples from the list of their recent “defense” endeavours:

1. Polemos, F26
16 year old juvenile makes guided missiles cheap with AI. Their demo showed and boasted a direct impact with ground troops.

Heavily reminds me of Ender’s Game.

2. Seeing Systems, W26
AI-commanded autonomous strike drones for frontline military deployment.

3. Greypoint Industries, S26
Drone-swarms to “hunt hidden enemies”.

And dozens of other war oriented startups like that.

Not with PG, not with Sam, but with Garry.

The same money that go into cozy sandbox startups, now are used in Ukraine / Middle East to damage and destroy lives.

Still want to submit that application?

YC in 2026 is not what it used to stand for.

Think where you are truly getting your money from, and who are you letting into the control of your company.

[Arthur Katcher @arthurkatcher]

Backing founders who served and have an actual background, with their life path gradually leading to that, will the full understanding - that’s one thing.

Backing 16 year olds to create AI missile navigation and have a cozy YouTube channel on the side where you talk about positivity and how universe helps founders - that’s another thing.

And here I’m standing against the democratization of defense tech vc among teens. That just further fuels the separation between people of the world.

[Arthur Katcher @arthurkatcher]

@notdwd Man you were on it https://t.co/ckHeWQPVcC

[Arthur Katcher @arthurkatcher]

We made it chat

Garry the tan @garrytan has blocked me after the post where I've shown how YC turned into a pro-war fund, and is fueling money into startups that damage lives on various frontlines.

Getting in the block list of Garry is an honor on its own, but it’s just truly fun isn’t it

The guy is the first one to go into public trash talk and spit his opinion on unfavorable (to him) politicians and SF supervisors.

But when the table turns, and critique goes the opposite way - he’s the on that ban button, hitting that thing fast.

My stance stays the same: YC in 2026 is not what it used to be, and the downfall has happened on Garry’s watch.

[Arthur Katcher @arthurkatcher]

@rahul I would want to see that kid trying to cure illnesses, trying to save the nature. Why multiply the negativity? Who are our soldiers? I know who are our people, and those are all the humans among Earth.

[Arthur Katcher @arthurkatcher]

There is no division between the people who live on the territory of Russia and us.

There is division between the entities of the US gov and Russia Gov, and all the other governments to that extent, and humans are stuck in between.

People should think for themselves, and act in the best interests of humanity as a whole, not particular governments.

[Arthur Katcher @arthurkatcher]

The premise is that it’s bad to invest in war AND advertise your fund to kids (let’s be honest about that and the popularity of YC among teens) in the same time.

That invites those young individuals to think that they may as well build war tech to earn more money.

So yeah, I’m against the democratization and popularization defense tech vc is going through now.

We better teach young founders to build products that unite people and bring us together, and not urge separation upon them.

And now we have Garry sitting on lightcone podcast and talking what wonderful war investments they are now making.

[Arthur Katcher @arthurkatcher]

Well it’s not only about ISIS is it

Listen, my beliefs are simple. It is not the private sector’s obligation to sustain the protection of the general population.

It is the duty of governments as a part of the social contract they engage in with every citizen.

We pay our taxes and follow all of those border-concepts following the promise that we will be protected.

If someone from the private sector wishes to engage -well, we are free man with our own judgement. Sure that’s done with all the positive intentions in mind to protect the fellow kind.

But combining that with a socially-oriented-positive-values-philosophy VC fund that actively advertises and is popular among young founders…

Well, I can’t agree with that.

I do not agree with the popularization and normalization of defense vc, and I think majority of founders have much better things to do to help the mankind as a whole, and not a particular nation / force.

[Arthur Katcher @arthurkatcher]

See, this is the very division they urge upon ye.

We, as human beings, must defend our fellow man and our common rights throughout the Earth, across the nations and beyond all borders.

To believe in borders and separation only serves to uphold their existence.

Select the light, not the war.

[Arthur Katcher @arthurkatcher]

@notdwd Will receive as a badge of honor

[Arthur Katcher @arthurkatcher]

Choose your North Star carefully. Dont put billions on that pedestal. At the end of the day we are here to make the world around us a better place, and following only material is the kind of propaganda those tech billionaires are pushing to the youth. And moreover, it contradicts the core values of YC under PG.

[Arthur Katcher @arthurkatcher]

@michuk be the change, don’t encourage harm

[Arthur Katcher @arthurkatcher]

doesn’t always mean we as individuals have to follow, it’s a choice

you choose to be the most hyped and spoken about VC fund in the country, you pay the price.

In other words I’m not arguing against the rational of going military - they simply have to.

But the moral, and the spirit and the doings of those investments - they just put a mark on YC forever.

Those AI drone / missile startups - as with everything in that market, there’s a % of error and caused civilian casualties.

AI navigated missile from the YC startup might, if not already ever have, be stroke down by air defense, the debris fall on civilians causing casualties.

This is just an inevitable thing, it will happen, because it happens every day with military tech. And now on YCs money.

So I just draw a line for myself here what YC is and what they are not.