Hacker News: afar

An open source CLI for saving your X / Twitter bookmarks locally

afar — Sun, 05 Apr 2026 19:34:29 +0000

Article URL: https://www.fieldtheory.dev/cli/

Comments URL: https://news.ycombinator.com/item?id=47653017

Points: 2

# Comments: 0

Show HN: The Librarian creates artifacts while a model finishes its work

afar — Fri, 06 Feb 2026 19:51:47 +0000

Article URL: https://librarian.fieldtheory.dev/the-asymmetry-of-doors-4e1f61

Comments URL: https://news.ycombinator.com/item?id=46917310

Points: 1

# Comments: 0

Field theory and the rise of ambition machines

afar — Fri, 06 Feb 2026 18:19:57 +0000

Article URL: https://www.fieldtheory.dev/theory.html

Comments URL: https://news.ycombinator.com/item?id=46916222

Points: 1

# Comments: 0

New comment by afar in "SpaceX avoided a Russian jamming attack in Ukraine"

afar — Thu, 21 Apr 2022 13:55:31 +0000

There's a lot more to it than just contracts and contractors. There's a good book that talks about improving the military's ability to respond (The Kill Chain). The general point is that the face of war has evolved but the U.S. military's primary method of changing direction and decentralizing decisions (The Kill Chain) has not.

Worth a read.

Density launches Open Area radar system for buildings

afar — Thu, 08 Oct 2020 16:31:34 +0000

Article URL: https://www.density.io/blog/introducing-open-area

Comments URL: https://news.ycombinator.com/item?id=24720736

Points: 13

# Comments: 0

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 20:40:42 +0000

Gold. Proud to be affiliated.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 20:39:32 +0000

Can confirm

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 18:47:18 +0000

You're asking good questions about raising capital but the outcome was a rare circumstance where all cofounders, previous investors, new investors, current employees, and the exec team are thrilled. There's a lot to do but the round was right-sized as it was the same amount we planned to raise pre-pandemic.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 18:41:11 +0000

Can't count cars at the moment, unfortunately. But there's some cool tech from Flocksafety and other camera solutions.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 18:38:12 +0000

Lower cost systems like Google's Popular Times, are not as accurate as they seem. The next time you see a graph on google, you'll notice there's no y-axis. It's a clever way to look like actuals when it's relative to itself. Also we have units in many GPT locations. They're not accurate. On the vc returns thing ¯\_(ツ)_/¯ We'll see.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 16:06:34 +0000

No rain! It's a great callout. We'll see what we can do if for no other reason than to understand risk.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 15:49:03 +0000

Thank you. Fwiw, our eng team has deeply benefited from all those dev tools and libraries. The stack to result in real-time, accurate count is nuts. I think one of our devs, Gus, was on the thread. Maybe he can weigh in.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 15:47:06 +0000

This one's legit (cofounder here). We honestly thought it would be a side project. We originally used a raspberry pi and two TP-Links to recreate a router (https://www.youtube.com/watch?v=yRGa9-QUDWo&t=7s). People are really hard to count.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 15:44:40 +0000

We get this question from time to time. It may be possible with some systems but it's not feasible at our resolution. You can see more of our depth data here -- https://medium.com/density-inc/ai-is-not-magic-its-manual-la...

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 15:42:50 +0000

I've lost track of the number of times we've said, "well, we count people" and thought... god this must be boring for other people.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 15:39:21 +0000

If it becomes super wide spread, we'd make it low to no cost to provide wait times to end users.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 15:36:34 +0000

dtertman! Those were awesome questions (same cofounder here). I read a thing a while back as a startup, your job is to survive long enough for the market to need you. Great talking to you 5 years later.

New comment by afar in "Density raises $51M Series C led by Kleiner Perkins"

afar — Tue, 28 Jul 2020 15:33:07 +0000

That is an exceptional name. If you still want to build it, we have a real-time API. Love supporting apps :) (Density cofounder here)

New comment by afar in "Safe: Set maximum capacity for any room, floor, or building"

afar — Sat, 16 May 2020 19:09:46 +0000

I agree with this. It's compliance will be contextual / regional / etc. This is why the system also support real-time alerts and safe analytics. In the event a place like Walmart wants to more actively enforce they can. Display is just the public facing feature.

New comment by afar in "Safe: Set maximum capacity for any room, floor, or building"

afar — Sat, 16 May 2020 19:07:22 +0000

MAC address tracking is one approach but it's imprecise and with the proliferation of "things with antennas," you have to do a lot of reconciling on the backend to not count 1 person as 3 when they have multiple devices on them. Euclid analytics tried this. It's a common but flawed approach to count (use depending).