Hacker News: gjmulhol

New comment by gjmulhol in "Metal-Organic Frameworks, Chemistry's New Miracle Materials (2018)"

gjmulhol — Thu, 16 Jul 2026 00:18:50 +0000

Not only is this from 2018, but Yaghi himself demonstrated MOFs in 1995 so "new" is pretty relative.

New comment by gjmulhol in "Apple Passwords Now Auto Fixes Weak and Compromised Passwords with Agentic AI"

gjmulhol — Mon, 08 Jun 2026 20:33:28 +0000

I have very mixed feelings about this. It is an incredible amount of trust in Apple (both security and actual execution, esp given their history in AI), but it would be such a massive upgrade to individual user security that it is hard to comprehend.

New comment by gjmulhol in "HyenaDNA: Long-Range Genomic Sequence Modeling (context length of 1M tokens)"

gjmulhol — Thu, 29 Jun 2023 21:28:21 +0000

This is really cool...these LLM-like models in technical disciplines are going to open up he new frontiers in science.

Navigating Uncertainty and Parenting in 2020

gjmulhol — Wed, 02 Dec 2020 17:18:31 +0000

Article URL: https://citrine.io/navigating-uncertainty-and-parenting-in-2020/

Comments URL: https://news.ycombinator.com/item?id=25278665

Points: 1

# Comments: 0

New comment by gjmulhol in "Ask HN: Who is hiring? (December 2020)"

gjmulhol — Tue, 01 Dec 2020 17:21:54 +0000

Come join our team -- super exciting technical problems of both the engineering/development and chemical engineering/materials science varieties!

New comment by gjmulhol in "Annoying Things that VCs say or ask (and how to think about them)"

gjmulhol — Wed, 26 Aug 2020 21:19:15 +0000

This is a good list with some good advice.

As a personal anecdote, I had a very well-known investor tell me that my business would never make more than $5m per year (not venture scale). And this was even knowing that my business is a pretty standard enterprise software business model. We are well past that at this point, so I am proud to have proved him wrong.

New comment by gjmulhol in "Proselint"

gjmulhol — Thu, 13 Aug 2020 01:58:36 +0000

This is cool in concept, but the live demo doesn't seem to be working. Or maybe I am using it wrong?

New comment by gjmulhol in "Plastic particles falling out of sky with snow in Arctic"

gjmulhol — Wed, 14 Aug 2019 20:27:30 +0000

Want to use your CS/dev skills to help solve this problem? Come join us at Citrine Informatics: https://citrine.io/careers

New comment by gjmulhol in "JSON-complete – JSON alternative that retains refs, handles circular deps"

gjmulhol — Wed, 24 Jul 2019 05:05:37 +0000

Cool, and definitely useful for complicated data structures

New comment by gjmulhol in "High-Tech can’t last: there are limited essential elements"

gjmulhol — Wed, 12 Jun 2019 11:37:07 +0000

One of the big questions is whether we can extract these minerals from existing devices that are out of use/have been disposed of. Ideally, that means that we are designing new devices with disassembly in mind. Everyone from Apple to Huawei is talking about doing this, but the proof will be in the pudding.

Some of the comments are slightly inaccurate. We actually don't know where all the deposits are, and there was just a large discovery of rare earth elements off the coast of Japan. Much rare earth extraction has been happening in China because of relatively lax environmental standards that have reached back decades, so the US, Australia, and many other countries with deposits can't compete due to the costs of labor and complying with environmental standards and regulations. Mountain pass is one of a few deposits in the US, and happens to be one of the larger ones that is sitting idle. There are lots of mines globally and could be more, but economically they need to be attractive.

Copper is another interesting element. It is exceedingly hard to extract from existing devices because it is buried inside the chips, boards, etc. You can recover about 25% of the copper in a device, or about 3% of the total mineral content of a device when you extract copper. Widespread copper mining has destroyed parts of the Atacama desert in Chile and is a really nasty process.

Finally, work has been going on for a long time to replace rare earth elements or dramatically reduce how much is used. In some cases, you need small amounts because you need those f-orbital electrons but you can get away with using creative coatings instead of large volumes of materials. In other cases, you can replace them by multi-layering other materials to approximate their performance. There are huge opportunities here, but we are a couple decades away from seeing any real sea change in what our devices are made of.

New comment by gjmulhol in "Ask HN: Physicists of HN, what are you working on these days?"

gjmulhol — Wed, 27 Mar 2019 15:15:12 +0000

Building physics and chemistry domain specific machine learning systems at Citrine Informatics. It's the best of both the physical science world and the data science world, has really hard problems, works with big companies and has big contracts, and is a team where more than half the people have technical graduate degrees.

Can machine learning identify the next high-temperature superconductor?

gjmulhol — Tue, 21 Aug 2018 01:35:39 +0000

Article URL: http://pubs.rsc.org/en/content/articlelanding/2018/me/c8me00012c#!divAbstract

Comments URL: https://news.ycombinator.com/item?id=17806050

Points: 1

# Comments: 1

New comment by gjmulhol in "Supporting AI in the Enterprise"

gjmulhol — Mon, 20 Aug 2018 20:46:38 +0000

This article is spot on. Using AI and ML in an enterprise setting is about changing behavior and helping people to understand why the AI/ML system is making the recommendations (or whatever the output is) that it is. I have seen this in dozens of companies now: even great AI requires cultural change to succeed. And good cultural change can make only mediocre AI models into game changers.

New comment by gjmulhol in "Ask HN: What is the best cloud region to serve Japan and Australia?"

gjmulhol — Tue, 03 Jul 2018 21:20:08 +0000

I have had good luck using SE Asia (in our case Singpore) for serving the region. The undersea cable map (https://i.redd.it/eo6248sth0pz.png) shows that it is probably your best bet, but as magicbuzz says, it is likely too far for anything where latency makes to pay a major price, which is most things these days.

New comment by gjmulhol in "3D Printing High-Strength Aluminum"

gjmulhol — Sat, 23 Sep 2017 16:40:36 +0000

Most people in the industry talk about Additive Manufacturing instead of 3d Printing for industrial metals AM.

New comment by gjmulhol in "[dead]"

gjmulhol — Tue, 21 Feb 2017 05:50:13 +0000

Well...we found the line...

New comment by gjmulhol in "What can we do as men to stop sexual harassment?"

gjmulhol — Tue, 21 Feb 2017 05:49:37 +0000

Focusing on quarterly goals or the like just glosses over this as an issue. It is important that men be willing to say "that isn't how we talk around here" or "man, that is a pretty crude thing to say to someone in a professional environment." If you have the power, comments like that should be met with "you're fired" because honestly, if someone in my workplace can't maintain some sense of decorum around women, how should I expect him (in this case, always a him) to behave around clients, investors, etc.

This is not something around which to dance lightly. It is far too common, and it only takes a few people willing to stand up and say that this isn't acceptable to break the norms of a bunch of guys just laughing along while a few say crude things.

New comment by gjmulhol in "MD Anderson Fires IBM Watson in Setback for Artificial Intelligence in Medicine"

gjmulhol — Tue, 21 Feb 2017 05:44:33 +0000

Is this actually a setback? While AI will undoubtedly have an impact in medicine, Watson is an NLP system-cum-amalgamated marketing machine that from what I have seen has done little more than to undermine the promise of properly implemented AI technologies with a lot of marketing gibberish and half-delivered results.

New comment by gjmulhol in "Shopping coming to Instagram"

gjmulhol — Wed, 02 Nov 2016 04:04:43 +0000

I think the name Instacart is already taken.

New comment by gjmulhol in "[dead]"

gjmulhol — Thu, 08 Sep 2016 05:54:34 +0000

"These are the new leads. These are the Glengarry leads. And to you they're gold, and you don't get them. Why? Because to give them to you would be throwing them away. They're for closers."

http://3.bp.blogspot.com/-TQ8GvYqwOfg/TweSejc8ZgI/AAAAAAAAAC...