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Ask HN: What weird or hard problems are you trying to solve?

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181–190 of 831 posts

Re: Ask HN: What weird or hard problems are you trying to solve?

#181

I’m working on a new way to talk online, with the goal of killing cancel culture, increasing understanding, and basically calming down current radicalization. Picture Reddit, but with the ability to anonymously share ideas with other people in your social circles. My theory is that most reasonable people stay off social media, so places like Twitter end up filled with unreasonable narcissists. At the same time, discu…

This is a great idea. I would love to use a service like this.

One of the downsides of anonymity that many people raise (fallaciously) as an argument against it is that too many of the anonymous people are just trolls, therefore it is a negative quality. Having it be people that are known to the person brings about an assumption of character that can solve this issue, so long as the user associates with people that they tolerate (which is a mostly fair assumption, considering how private groups and similar functions operate on the established platforms).

One problem that I could see is that someone could be found out simply by virtue of being the only person that would say something like them. I guess this could be alleviated by filtering in public posts from others, but this could cause other problems while not solving what it's supposed to.

The other issue for this is the Gab problem, which cannot be easily solved: that if you're using this service, you're a bad person who needs to be blocked/fired/etc. Unfortunately the mobs you're working against work to destroy with little rhyme and no reason, and they work for free (often literally unemployed). This problem is hard to get around, but I think could be mitigated with marketing it as a platform first and a solution second.

Nonetheless, I wish you the best. This is a very interesting concept and could really do a lot of good in the world.

Re: Ask HN: What weird or hard problems are you trying to solve?

#182
post #170

I hope this counts as weird enough ... PROBLEM: If time travelers from the future were to visit you, it would be difficult for them to quickly prove their authenticity. SOLUTION: Temporal passwords. At the start of each year, you devise a new password. You commit the password to memory, but you never write it down or divulge it to anyone until Dec. 31, when you submit it to the Temporal Password Registry, which publi…

What if the visitors are from November of this year?

Re: Ask HN: What weird or hard problems are you trying to solve?

#183

Automating cloud architecture creation. I'm building a "catalog" of architectures that you could use to create a complete cloud architecture on your AWS, GCP or Azure account in less than one minute. So, for example, you could create a docker-based architecture with CI/CD, auto-scaling, zero downtime deployment, SSL, load-balancing, high availability and MongoDB in less than one minute in your own AWS account. It's l…

I've thought about this in the past. There's a modern way to build architecture, and cloud providers are in general only providing the building blocks and requiring you to put them together. It's unscalable to expect every company to hire someone smart enough to construct a good architecture (let alone the time) but at the same time, people who have been working on infrastructure long enough know that there's really only a handful of useful architectures that solve 90% of problems. I thought of it as CTO-as-a-service or CTO-in-a-box.

Service meshes like istio.io start to solve a portion of this.

Almost certainly there is endless complexity but I bet you can come up with something useful. Good luck!

Re: Ask HN: What weird or hard problems are you trying to solve?

#185

Trying to predict where electrons go in a molecule, but using a classical model. This can be done with supervised machine learning - you can use quantum mechanics to get lots of labeled data - but it's a tough problem, because chemical physicists have very high standards for accuracy.

Could hidden variables theories help simulations in some ways? E.g performance

Re: Ask HN: What weird or hard problems are you trying to solve?

#186
post #62

I’m trying to map relational algebra onto Rust’s type system. If I’m successful, I’ll have a bunch of collection types with different performance characteristics that are all drop-in replacements for each other.

I'm in the same boat: https://github.com/Tablam/TablaM, only that also building a lang (wish to revive the spirit of the dbase/fox family langs).

I have experimented with varied stuff, including columnar, so I think we can help each other!

Re: Ask HN: What weird or hard problems are you trying to solve?

#187
post #94

How to measure pedal (and/or crank) angle on a moving bicycle to 0.05 degree. Anyone?

Why do you need 0.05 degree precision? You can use Hall effect sensors to sense chainwheel teeth. Two sensors and you can get quadrature and direction. I've done that on a mobile robot. With analog-output Hall effect sensors and some processing, you can get sub-degree precision, although 0.05 degree is asking a lot.

We're trying to measure aerodynamic drag, thing is there are huge vertical forces (weight of rider pressing down on pedal) and relatively small horizontal forces (due to drag). So if we don't know the angle accurately, we can't separate out the components - make sense?

Re: Ask HN: What weird or hard problems are you trying to solve?

#190
post #170

I hope this counts as weird enough ... PROBLEM: If time travelers from the future were to visit you, it would be difficult for them to quickly prove their authenticity. SOLUTION: Temporal passwords. At the start of each year, you devise a new password. You commit the password to memory, but you never write it down or divulge it to anyone until Dec. 31, when you submit it to the Temporal Password Registry, which publi…

Couldn’t they just tell you tomorrow’s stock prices? Or a future sports score.
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