Readit NewsSuper interesting. My notes as a colorblind man (might be misunderstanding some stuff though):
(Being a little sloppy with sex stuff here. Not all women have two x’s, women can be colorblind too, etc.)
• Two of our usually-three cones are specified on the X chromosome
• When one of a woman’s X’s specifies an anomalous cone she ends up with a 4th, anomalous type of cone.
• This happens ~14% of the time for women.
• That’s about the same percent as color blindness in men.
• That’s not a coincidence. Because color blindness comes from one of these women’s sons getting that anomalous 4th come instead of a typical 3rd cone. This anomalous cone tends to overlap more with one of the other cones in its range of perceived frequencies, which is what causes color blindness.
• But only a small percentage (not sure what percent yet?) of these women with 4 different cones actually seem to be able to perceive more colors
• that’s because the 4th, anomalous cone might basically fully overlap with one of the typical ones in its perceived frequency range, so it doesn’t really give the brain any additional info
• one question I have: so it seems like not all these anomalous cones are the same. Is there a fixed number of types? Or is it more of a spectrum? Further, are /all/ cones on a variable spectrum? Or is almost everyone’s blue cone exactly the same?
• this was interesting: colorblind men actually have a set of colors they can distinguish that people with normal color vision can’t (the article explains why)
• in this study they found colorblind men (but by looking at unusual things they /could/ see, not things they couldn’t? Not sure) and then tested their mothers to see if they could see extra colors.
• Most of them couldn’t. One of them could. The study was only like 9 people? Safe to say /all/ of these women had 4 types of cones, even though only one of them had a sufficiently non-overlapping fourth one to get some benefit?
• As a colorblind man, I’ve never noticed an ability to distinguish colors others can’t. Only the opposite.
• it’s intellectually neat to know that’s possible, even if it doesn’t tend to “come up” in everyday life.
• It souuuunnndssss like the amount of extra color vision that these tetrachromats get is only the same as the extra color vision /I/ get—that same “theoretically there, but doesn’t seem to come up in everyday life” thing. That’s a little disappointing—I though tetrachromacy was more kooky.
Amped to see Still Drinking on HN again.
If you enjoy devouring this guys writing, buy his book, “And Then I Thought I Was A Fish” (I think it’s the “novel” he references the game being based on?). I really really liked it. Link at the bottom of the original post.
The other book is just a collection of blog posts. It’s /okay/. But I really really liked ATITIWAF. The kind of book that makes you want to try your hand at writing.
—a random internet fan.
bug in the app on iPhone Xs: unable to leave "preview profile" step.
> The other funny thing is that your previous experience doesn't do anything for you other than maybe getting to skip the technical phone screen. Everyone goes through the same process
You could also argue that this is fair chance between those who just came to the field.
> On the bright side, it does look like many companies are now realizing this isn't a great way to evaluate someone's ability and are beginning to incorporate more practical exercises.
It's the other way around: many more companies are incorporating Leetcode style interviews as their first "filters" either via online test or quick on-site.
Here's what happened: it used to be the case that only these FAANG companies have the resources and the know-how to either create these "trick" questions or picked a few from their favourite Algorithms book "exercise" part.
These days thanks to many "algo" challenge websites (like InterviewCake.com) that not only provides questions but also correct, detailed, and optimized answers, it is getting easier for employers to just pick a random ones and use that as interview materials.
This is the first time I've heard this characterization of Interview Cake as making the Google-style whiteboard coding interview accessible to small(er) companies.
It /might/ be /somewhat/ true. But I'm skeptical.
Anecdotally, when I started Interview Cake 6 years ago it was already true that most small companies my friends and I interviewed with were using these sorts of data structures and algorithms questions. The handful of exceptions were mostly companies that were outside the "scene" (usually because they weren't in SF or NY).
Original author here. Thanks for the post! Would stick around to answer questions but I'm on vacation in Japan right now!
We're doing a poor job with navigation on the site ATM, so here are some "you might also like" hits for you:
A piece where we derive most of the main data structures step by step, starting with naked bits in RAM: - https://www.interviewcake.com/data-structures-and-algorithms...
A reference / cheat sheet for the main data structures: - https://www.interviewcake.com/data-structures-reference
A reference / cheat sheet for sorting algorithms: - https://www.interviewcake.com/sorting-algorithm-cheat-sheet
gameguy43 commented on Show HN: Milkshake – Make Websites from a Phone milkshake.app... · Posted by u/collistaeed
Messaging feedback: try leading with the imagery in your video (i didn't play the video until reading the whole page and still not understanding what the product was):
- shot of instagram profile page, with highlighted link to website - shot of what that website looks like
"oh, that's what this is for." and maybe even more specifically: why do you need one of these? so you can sell shit.
In hindsight, I see how "Insta website" was trying to convey this, but it wasn't clear to me that "Insta" was referring specifically to Instagram /directly/--I thought it was just millenial-hip short of "instant."
And "turn your link in bio into" I at first parsed as "turn your linkedin bio into." Then I was like "oh I guess that's not a typo" but I still wasn't sure which bio it was referring to and it seemed like odd phrasing.
Then I hit "Pick a card. Cards are..." and was like "ugh, yep, this is very much a hip app thing i'm not going to understand." instead of leading with a vocab word and then defining it, just skip the vocab word and use its definition. "Pick a page template. Visitors can swipe between your pages just like an instagram story."
(obviously, i'm an old soul and don't really understand instagram. maybe "card" is already more familiar than "page" for instagram folks?)
good luck.
This is neat. But I'd have thought the lower-hanging fruit anti-spam wise for Apple would've been to add a "mark as spam" button next to push notifications so users can start reporting all the apps that abuse push notifications to send them advertisements.
My dream is to make film and video game scores.
Oh and I did this goofy lil thing the other day: https://youtu.be/ie9JHxFAsCo