shahsyed

I've only read up to Part Two so far but find the guide is extremely helpful and resonates with other resources (i.e Grokking the System Design Interview) and with my own experiences for what I believe is the very broken interview process that we face today.

Highly recommend. Interviewing.io is one of the best resources for those doing prep today and the team behind it is awesome.

Understood.

I had question: This is what we can only perceive through internet/routing table entries right?

Internal to FB, we don't know what had caused issues that led to the BGP UPDATE.

That's kind of what has been confusing me - there's a lot of speculation around FB's data center design and what actually happened, but we actually don't know for sure until they post an RCA - please correct me if I'm wrong here.

> configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues

This could be anything, potentially.

I'm not very knowledgeable in computer networking, but this could be as trivial as an incorrect update to a DNS record, right?

I find it extremely ironic that the game touches upon themes of corporate greed and climbing the corporate ladder (I've only played it until I got a soft lock during the 3rd tutorial). How else do you get themes of technology being a boon to society? Isn't it these companies who indirectly dictate this (e.g by using your public data)?

CD Projekt Red is a great example of why publicly owned companies and creating expectations for unreasonable deadlines for any software is going to cause your employees to deal with crunch and release something that doesn't work that great. Unfortunately I'm sure that this game will entertain more than it will highlight horrible industry practices.

This sounds great on paper!

I'm curious - how does your data consider racial biases when it comes to mental health?

Additionally, does your data take in consideration social determinants of health and health inequalities?

This is the exact same thing they said they wouldn't do, and now they're doing it.

This is very unfortunate. I'm not liking how the future is looking here. Fired a bunch of people, then announce a partnership with Google, and now this.

18 is great.

This concept itself, is not new. I'd love to see US cities with notorious transit systems (i.e New York City) implement this.

In Toronto, Canada, where I live, allow all children 12 years of age and under to ride the TTC (our transit system here) for free.

This is great, because it enables students to enroll in public (elementary or middle) schools that they normally shouldn't be able to get into (if they win the lottery, or if they apply well in advance and somehow do get in), and gives opportunities to students that they normally wouldn't have access to.

I genuinely laughed at this - I thought the same thing!

If you ever downloaded your own account data, I think OP and other concerned posters would understand how much data companies retain and this wouldn't come off as a surprise.

Snapchat data for example, has chat logs, snap history, what accounts you've added/requested as a friend, and friends that have added you all retained. I bring this up as an example because the idea behind this application was to send a message that would disappear after a variable amount of time :)

Great questions!

What's the underlying algo/impl used for this? According to the release notes it uses a DTopic data structure. While interesting, I'm not really sure if this is a unique/new structure by the author (buraksezer) or if it is an impl. from a paper I'm not aware of.

If anyone has more information about it, let me know!

Here's another reason why YAML is bad:

the fact that I have to read the spec to figure out what's going on.

It should have been fairly simple to do this.

Why do I have to know the difference between ":" and "=" ...?

You're partially kidding but you're 100% right.

Someone in another thread mentioned using some LISP or LISP-like language to solve this problem.

Would something like TOML make things better here?

What would have been the solution?