jlturner

Joined 15 years ago

Karma
1,361
Submissions
199
Member since
Aug 29
- Former Senior Software Engineer @ Aesthetic - Founder @ Duster - Former Technical Lead @ Pinterest - Former Founder @ URX (S13, acquired by Pinterest 2016)

YC Badge: 0x47703e253c647bc5f43ed06dddd023428dab8321

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Recent submissions

Comment · 11 months ago
Reminds me of stumbleupon, which despite taking you to a random page, was excellent because most of the pages were worth viewing.
Comment · 1 year ago
From the linked paper (https://www.nature.com/articles/s41598-022-11341-2):

> …measures of intelligence at baseline (ages 9–10) and after two years. At baseline, time watching (r = − 0.12) and socializing (r = − 0.10) were negatively correlated with intelligence, while gaming did not correlate. After two years, gaming positively impacted intelligence (standardized β = + 0.17), but socializing had no effect. This is consistent with cognitive benefits documented in experimental studies on video gaming. Unexpectedly, watching videos also benefited intelligence (standardized β = + 0.12), contrary to prior research on the effect of watching TV. Although, in a posthoc analysis, this was not significant if parental education (instead of SES) was controlled for.

A few interesting points:

- This was measured for children 9-10 yo and then two years later (11-12 yo). Children is a very broad category, but they’re not talking about toddlers, but closer to adolescence.

- Watching videos has a positive correlation similar to playing video games (but not quite as great), but only when parental education rather than socioeconomic status is controlled for in the data. Does this imply that the more important factor is how educated the parents are? Or do they mean parental education to be involvement of the parent in educating the child?

Anecdotally, my much younger nephew (almost 5yo) watches YouTube videos on how to draw Spider-Man and cars. It’s all self directed and stuff that he’s choosing to engage with. as a parent, I definitely see the educational value, and maybe even a glimpse of how unschooling could be effective practice.

Comment · 2 years ago
Comment · 2 years ago
There is also a Python implementation in the repo. I’m using Kubelka-Munk for pigment mixing, but the gradients it produces are so lovely that it really should be used in generative art more.
Comment · 2 years ago
This is pretty common in 3D work. Blender has a feature called “blend shapes” that implements a similar interface, and is commonly used for complex facial animation and general model parameterization.
Comment · 2 years ago
The title put on here is very misleading, the actual title from the article is “Fish fed to farmed salmon should be part of our diet, too, study suggests”.
Comment · 2 years ago
Comment · 2 years ago
I bought a used EV back in 2016 (2013 Leaf, certified preowned from dealer, just off 3 year lease), and negotiated 25% off asking price, coming in at $9k.

I have had $0 in maintenance costs, the battery health meter (and approx range) is still exactly where it was when I bought it, despite tripling the miles. I drive it every day for in city driving.

Meanwhile my Jeep of the same era required a new crate motor be installed after a cooling failure, and I’m pretty sure the transmission will need replacing in the next 5 years. The repair costs on this vehicle have been well over $10k. We ended up giving it to my sister in law after fixing it up, then bought a Subaru (which the assisted cruise control on is basically highway self driving, so good for long trips!).

A lot of ICE cars end up as junk too. The EV is actually more promising to me BECAUSE of the battery swap. I can put a battery in my Leaf from a newer vehicle and increase range to a couple hundred miles (I’ll do this eventually, maybe in another 10 years). This increases the longevity of the vehicle (it’s a great car aside from range).

Honestly, the Leaf was the best car purchase I’ve ever made (I’ve owned 7 in my life, all for > 10 years, aside from the latest car and another which was stolen). I’d highly recommend people buy used EVs (but I would do a certified preowned vehicle from the dealer again, you want to know that it doesn’t have said costly damage to the vehicle, but that’s true of ICE cars that require major work too).

PS: we use the EV for city driving (easily 90% of our car use) and the ICE car to go long distances (visit relatives, camping, road trips), and only leaves the garage 2-5 times a month (but packs on the miles!).

Comment · 3 years ago
Maybe a big Google query prefix to hide all major sites?
Comment · 3 years ago
Just started to learn to sew as an expectant father (to make blankets and clothes) and remembered my favorite interaction design computer science researcher, Takeo Igarashi, and his awesome work on Teddy3D, and later, Plushie.

Plushie is based on the Teddy3D software, which lets you create 3D models by using a 2D drawing interface. Plushie takes it a step further and simulates stuffing and creates a sewing pattern for you to make stuffed animals from.

They have a demo video on the page showing a workshop they did with kids designing and sewing plush toys. Definitely worth a look!

Comment · 3 years ago
Not true, I have had exes with IUIs and they all had crippling pain and much worse cramping with them. In every case I talked them into get rid of the IUI, and the pain went away.

The best birth control method (as defined by least side effects and max efficacy) I’ve come across is cycle tracking / family planning (called that because you can use it to get pregnant as well as prevent pregnancy). It’s simple (you can only get pregnant at certain times in your cycle), but there’s nothing for pharma to sell (it’s free!). Weirdly, doctors never seem to trust women to go through with it (and always try to push medicated birth control), but it’s easy, even before Apple added it to their products.

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