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Ask HN: What interesting problems are you working on?

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661–670 of 709 posts

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

#661

Multiplayer networking for a turn-based role playing game. Lots of difficulties I didn't foresee at all beforehand.

Could you list some of them?

Some difficulties are because I'm doing it in the browser. Things like connection/reconnection logic and how to handle duplicate clients and authentication and the decisions surrounding that because my game isn't a 'drop-n-go' game like Slither.io.

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

#662
post #631

I'm researching ways to scale deliberation and qualtiative decision making in the number of participants. I think this is the base for making politics work and tackling big wicked problems like climate change. It's slow, since my time is limited. But talking with lots of interesting people about ideas and approaches is promising. If you're interested to talk, please contact me.

I'm extremely interested, but I don't see your contact info in your profile. My email's in mine, if you want to get in touch.

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

#663

I'm trying to bring light-fields to the masses, as the next level of VR immersive experiences. I'm building a cheap light-field video-camera and the software to process it automatically and reproduce the videos with a VR headset. BTW, not it's not just like a normal VR video because you have parallax.

Wow, I just looked up light-fields. That's a super cool idea. It would be incredible if it were possible to make a 3d light-field camera, so that the person watching it in VR could look all around them.

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

#664
post #57

sustainability in fashion. there's a lot of "greenwashing" in the industry driven by opaqueness and lack of measurable data. step #1 is to get more brands on board. step #2 make it easier to monitor supply-chain and have actionable and measurable KPIs built around data.

This is an interesting challenge, because reducing consumption is the most effective way to increase sustainability. This is antithetical to selling more clothing though, so you won't find much traction with fashion brands. That being said, Poshmark does have a $600m valuation, so there is a market here.

Patagonia's also done a great job with this. I have no idea if all their advertising around not buying things you don't need has increased the number of items they've sold, or just the price they can charge for them.

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

#665

I'm helping to build a scalable system for delivering high value and life saving medical supplies to hard to reach places via autonomous aircraft. The system is currently operating in Rwanda and Ghana, and aggressively expanding over the next couple years. Specifically, I spend a lot of time thinking about and writing embedded software. The aircraft is fully autonomous and needs to be able to fly home safely even aft…

Are you working on Zipline [1] ? [1]: https://www.youtube.com/watch?v=jEbRVNxL44c

Just finished watching the video. Wow. Incredible.

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

#666

Earlier quoted context omitted.

Whoa, I just signed up for your newsletter a couple weeks ago. Small world. I'm enjoying it so far, keep it up! I too have really broad interests...I find basically everything interesting, which is both a blessing and a curse, as I'm sure you've experienced. I'd love to talk about this more...do you feel you've come to any kind of answer on how to focus your wide interests?

Excited to have you on the list! Definitely hit reply every once in a while as I'd love to chat more about all of these topics one-on-one. One theme I'm starting to converge on is the idea of a generalist as an "expert" at a) maintaining a wide range of mental models and skillsets and b) developing a sense of which type of problems to apply each to. In other words, effective generalists become good at knowing which s…

I'll definitely start hitting reply, thank you!

That's a really interesting, but sensible, conclusion to come to. It seems to follow that generalists would make great business/personal coaches, as they're good at pointing people in the right direction. I'd be curious to look at great coaches and see if they had a ton of different interests.

I'm stoked for the next email :)

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

#667

I'm helping to build a scalable system for delivering high value and life saving medical supplies to hard to reach places via autonomous aircraft. The system is currently operating in Rwanda and Ghana, and aggressively expanding over the next couple years. Specifically, I spend a lot of time thinking about and writing embedded software. The aircraft is fully autonomous and needs to be able to fly home safely even aft…

Are you working on Zipline [1] ? [1]: https://www.youtube.com/watch?v=jEbRVNxL44c

This is incredible and gives me engineering fomo!

* higher purpose project saving lives and helping people: check

* well-engineered, reliable, smart solutions quadrupling efficiency: check

* planes, Africa, autonomous flight, landing and take off hacks, app based pre-flight checks, oh my!

* all for peaceful, life-supporting, humane purposes!!!

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

#668

Earlier quoted context omitted.

The issue I have with this is there isn't a consensus about what and if any of these products work. The IES (illumination engineering society) has released a couple articles about why consumers should be weary of products that claim to control the rythms and after attending a talk from the IES on the subject I'm not convinced any of it works (at least to the degree marketing says it does) https://www.ies.org/fires/ci…

I've had a few discussions with the author of that article. Not intending to put words in his mouth, but I believe he is effectively saying 2 things: - The metrics Circadian Stimulus and Melanopic Lux are flawed - We don't know enough to produce products yet I agree with him on point 1, especially about CS. The author, and several others, have demonstrated a huge discontinuity around 3500K. The CS model needs improve…

May I also suggest your company to look into the opposite, basically extremely bright lights. I'm picturing one bulb that can go extremely bright in the morning for things like SAD, and then adjust throughout the day.

You may think extremely bright SAD lights is already readily available, but there's anecdotal evidence to suggest they are insufficient

https://www.lesswrong.com/posts/koRZu53LBZEapwww6/could-some...

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

#669

Earlier quoted context omitted.

> I also think supply of nuclear fuel can be an issue, although there are some concepts for other types than uranium. There are 3 fission fuels occurring in nature: Th232, U235, U238 Actually, our reserves of Uranium are greater (by energy available to generate) than all of our Coal, Oil and Natural Gas reserves combined. Our Thorium reserves are even greater than those. In fact, Thorium is extracted as a byproduct o…

I like to use current numbers, because extrapolating development is often pretty close to lying. And Germany has much to do for carbon efficiency, but for total emissions it is somewhere in the middle. https://file.scirp.org/pdf/ME20120500016_67195744.pdf Data is for overall efficiency, not power production. And Shellenberger is a nuclear lobbyist for that matter and his statements should be scrutinized. I am not ful…

> Shellenberger is a nuclear lobbyist

I think it is extremely foolish to make caricatures of people. Twenty years ago, Elon Musk was a software startup guy who had no idea about anything hardware - but that's only because nobody bothered to consider the full human behind the caricature.

Mike Shellenberger was an anti-nuclear activist for much of his early life and has always been (and is still) an environmentalist. Furthermore, he may be a lobbyist now (I'm not sure if you are right or wrong), but he ran for governor of California a few years ago. He has been very explicit in explaining his reasoning for shifting from anti-nuclear to pro-nuclear in multiple talks and articles.

Take a look at the full human, and your justification for scrutiny fades away. Everybody should be scrutinized to an extent, but he is not fundamentally a biased lobbyist with financial incentives.

> Germany has much to do for carbon efficiency, but for total emissions it is somewhere in the middle.

This is the problem, man. Germany has spent hundreds of billions of dollars on renewables and they still have high GHG emissions - all they have to show for their massive spending is a couple thousand extra deaths per year and higher electricity prices.

If you gave my company the same amount of money, we'd have the entire world to net zero emissions within two decades.

Goes to show the inefficiency of government funded programs, and the awful incompatibility of renewable energy with a reliable, affordable consumer electricity market.

> I like to use current numbers, because extrapolating development is often pretty close to lying.

We can use current and past numbers: for its entire existence, nuclear fission has been the (a) safest, (b) highest fuel density, (c) least waste-producing, (d) lowest emissions, (e) most reliable mass energy source humanity has ever had.

The new generation of reactors will only improve this divide between fission and everything else. If you are against extrapolating development and want to rely on established numbers, you must conclude [fission > renewables]

I know I'm biased, but I'm also right about all those superlatives.

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

#670
post #513

Earlier quoted context omitted.

Our philosophy has to key rules: 1. Diagnostician shouldn't treat. 2. No-one should review themselves. This eliminates so much fraud and mistakes.

wow; interesting idea! but how do you prevent dentists from forming referral cabals and cheating the system?

Easy, we ensure that same dentists don't work on the same case. Patient can choose who will do the clinical examination, but can't choose who does the diagnosis (they can only set the minimum ranking position of diagnostician. Similarly, patient can choose dentist who will do the treatment, but this dentist can't change the recommended therapy.
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