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Ask HN: What interesting problems are you working on?

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Re: Ask HN: What interesting problems are you working on?

#241

Earlier quoted context omitted.

> so I have been learning analog IC chip design to build an open source high-throughput DNA synthesis chip. Any resources and books you'd recommend?

This is not at all an area I know anything about, but a podcast I was listening to (Moore's Lobby) recently mentioned on chip design broadly: https://www.zerotoasiccourse.com And also: https://www.udemy.com/user/anagha/

Thank you!

Re: Ask HN: What interesting problems are you working on?

#242
post #6

A little while ago, a patent for high throughput DNA synthesis using silicon chips went off-patent, so I have been learning analog IC chip design to build an open source high-throughput DNA synthesis chip. If it works, and I sold them at cost, it would reduce the cost of oligo pool synthesis by ~100x and possibly gene synthesis by 10x. For about 8-9 years now my goal has been to build a cell from scratch for less tha…

Do you mean completely from scratch?

If so, why would one want to do that versus taking an existing cell and injecting custom DNA?

Re: Ask HN: What interesting problems are you working on?

#243
post #17

I'm on a (currently very experimental) project where we're trying to answer natural-language queries using data from an arbitrary database (given hypotheses on the schema). The natural-language plaintext is fed into a language model that annotates it. That output is converted into an intermediate representation based on relational algebra, which we manipulate and finally compile to SQL. It's probably not scientifical…

So you're making big assumptions that the database's table names map to important concepts in the user's vocabulary, and that a thorough understanding of the data model can be ascertained from the schema alone? To be brutally honest: that's a silly assumption and likely a dead-end.

(One thing I want to emphasize here is how abysmally, unbelievably, depressingly god-awful the vast majority of database schemas are.)

You wouldn't expect any user-friendly feature to be automatically stamped on top of a database without the involvement of a programmer, and this is no different. You need some sort of descriptive layer between the database and the query engine (or beside it, helping out) that programmers are involved in building. AI is not going to magically solve this problem for you. Figure out what you need described to you and turn that into a meta language that application developers can write to help your engine out.

Frankly I'm wary of any direct link between the user and the database. How do you deal with constraints like "users should only be able to see data associated with their organization in tables X, Y, and Z" if the programmer doesn't tell you? How could you possibly prevent exploits and security problems? Another reason to focus on querying an intermediate layer or relying on a programmer-provided description of what's available.

(Or am I assuming way too much, and "hypotheses on the schema" is already this meta-language?)

Re: Ask HN: What interesting problems are you working on?

#244
post #203

Earlier quoted context omitted.

I'm hopeful that I can turn it into a public facing dashboard that others can see. It covers the entire state I live in, monitoring 32 stores and about 8k products right now. Already seeing some weird stuff in the data, like a product that changes price every 30 minutes, $30->$50->$30 repeat. It's a niche type of store (dispensary) and essentially a state blessed monopoly since they limited it to 40 store licenses to…

The price change you describe sounds like a poorly implemented price test. I don't think Shopify allows dispensaries to operate on their platform, but that is the type of hack you have (had? it's been a few years) to do to run a price test on Shopify.

That's what I assumed as well, but it's still... off somehow.

The same product is carried at the other stores, each has it at a price of $20 exact...then this one bounces between $30 and $50 all day.

I mean, maybe they are getting suckers to buy it at the inflated prices for both, but I'd be shocked if so. They also carry other products from the same line, and they are all priced normally at $20.

Re: Ask HN: What interesting problems are you working on?

#245

How does reality work? How could it be changed in a substantial, positive, intentional way, ideally in a surprisingly short time frame?

Im genuinely interested in this. Which aspect of reality? And when you say “positive”, from whose perspective or within which frame are you defining it?

Re: Ask HN: What interesting problems are you working on?

#246
post #218
post #113

I’m working on making body doubling a more main stream approach to accomplishing everyday tasks. Body doubling is known within the ADHD community and entails performing a task in the presence of another. More details here: https://www.healthline.com/health/adhd/body-double-adhd It helps to engage motivation by using another person as the proxy. I wrote a bit about how I think it works here: https://doubleapp.xyz/blog…

What makes this different from Focusmate.com?

Great question!

Focusmate is a great product centered around virtual co-working and work productivity, whereas Double will not be centered around co-working, but for everyday tasks (which can include co-working). As a result, we are designing the experience to be tailored towards the everyday experiences rather than a co-working product used for everyday task.

Essentially, we want to expand the scope of tasks you can double up to do together and provide a better UX for those diverse tasks.

Re: Ask HN: What interesting problems are you working on?

#247

Earlier quoted context omitted.

How far down this road do you go? Someone engaged in bioweapons manufacturing probably uses laptops and chairs too.

The difference is that those already exist. I think concern about the development of new technology is valid. Suppose nuclear weapons did not exist and someone was concerned about the Manhattan project — would you say that chairs enable people to build regular bombs, so we shouldn't worry about nuclear bombs?

Nuclear bombs have very few uses other than blowing up cities or threatening to do so. DNA synthesis is both of considerable use outside of bioweapons production and not really a critical bottleneck in bioweapons, which is why I'd consider it more like laptops or chairs than like, say ICBM guidance systems or weapons grade enrichment programs.

Re: Ask HN: What interesting problems are you working on?

#248

A new platform to play Magic: The Gathering digitally. Been working on it since the pandemic started. It's almost done. It's a multiplayer sandbox (no rules enforcement) that just allows you to play by providing all the different zones the game involves (play area, hand, lib, gy, ex) and letting you free-drag between them. It has features for every mechanic the game involves - tapping, turning face-down, switching ca…

this reminds me a bit of Cockatrice - hope your version ends up cooler though!

Re: Ask HN: What interesting problems are you working on?

#250
post #6

A little while ago, a patent for high throughput DNA synthesis using silicon chips went off-patent, so I have been learning analog IC chip design to build an open source high-throughput DNA synthesis chip. If it works, and I sold them at cost, it would reduce the cost of oligo pool synthesis by ~100x and possibly gene synthesis by 10x. For about 8-9 years now my goal has been to build a cell from scratch for less tha…

I don't understand why, if it really worked, the org holding the patent didn't do anything of it.
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