My favorite quote on the subject is:

> Every great open source math library is built on the ashes of someone’s academic career.

From William Stein, lead developer of the computer algebra system, Sage: http://wstein.org/talks/2016-06-sage-bp/bp.pdf

Yeah, working from home for four years now and I only have one office and desk. It's used for work, of course, but also when I'm writing for my self, or playing video games with my friends.

I don't have any problem disconnecting from work, but it probably helps that I have a different computer for work that goes in a drawer at the end of the day.

I do follow points 2 and 3 though and I think those are essential.

It's definitely a culture thing, probably more at the company level but certainly country level culture matters as well.

At my San Francisco based fintech, the culture that's developed is:

For one-on-ones and small meetings where everybody is expected to participate, cameras are on.

For large one to many broadcasts (like an all hands) generally people turn the camera off.

But I would say probably 95% my meetings have cameras on, so I'm constantly "seeing people".

Pretty much the same. At moderately large East Coast company, big (usually optional) informational meetings, non-presenters usually have their cameras off. Small team meetings and 1:1s, cameras are mostly on though no one will object if someone has to shut theirs off for some reason.

Yes, the models are not constantly learning. They only update their knowledge when they are retrained, which is pretty infrequently (I think the base GPT models have not been retrained, but the chat laters on top might).

False. Every time you transfer money from an account at one bank to another you're using ACH. Same with moving funds from banks to stock brokers or brokers to banks.

The real reason it doesn't compete is its slow, and many banks have terms of service that say something like "You can only set it up between accounts you own" so sending to other people is often technically a violation of your agreement with a bank.

Some banks don't have a way for a customer to initiate an ACH, unless maybe calling them. Nothing in their app or website for it.

I trust Vacuum Wars for technical reviews of vacuums and vacuum robots: https://youtube.com/c/VacuumWars

Looks like their big robot round up is about 9 months old, but they have single model reviews as well.

Edit: A little bit on why I like this review channel:

A lot of gadget reviews I read nowadays about household products are like "I like this robot it did a good job cleaning. Sometimes got stuck but not too bad."

Vacuum wars is like: "I worked 500 g of fine sand into our test carpet and ran the robot for 5 minutes. It picked up 362 g of sand which is 32% better than the average for this category and the best of the current robots that I've tried. Now, on the artificial hair test, the rotors tangled after just 50g which is a poor result for this category... "

He's set up a testing suite. He runs all of the vacuums through it. You can compare the results. It's how reviews should be.

I use both Roomba and Roborock in my house. Unfortunately that will be less Roomba going forward as I'm soured on the Amazon ecosystem.

I wholeheartedly recommend the Roborock devices. They're exactly where they need to be feature-wise and their app is workably okay. Very high WAF guarantees they'll always have a spot in the house.

They prefer to have them at the end because:

1. You don't want these cars to get banged around a lot and maybe have their weight change.

2. So you put them at the very end where they take the least wear and tear.

3. But they're not allowed to be the last car because they often don't have brakes.

So you put them as the second-to-last car.

This answer based on combining two of the captions from the page:

> Always the "Second to Last Car in the Train"

> Andrew B Baird: No brakes so it is not permissible to be the last car.

And

> The scale cars are now more robust? I notice that this car is not on the end of the train.

Because the same two numbers (routing and account) are used to deposit money AND debit money.

So if you post your account numbers I can pull all your money out. Now you'll likely get it back if you file a fraud claim, but that's an extra Hassel, and your out finds until they give you a provisional credit.

It's also why Donald Knuth doesn't hand out real cheques anymore… too many people (me included, but I later blackened those parts) posted pictures of their cheques online: https://www-cs-faculty.stanford.edu/~knuth/news08.html

I don't know if something really happened or if he was just being cautious, but so the Bank of San Seriffe was born: https://www-cs-faculty.stanford.edu/~knuth/boss.html

That can't be right. Im a European living in Hong Kong, both places, widely different you'll admit (HK still doesn't have frigging IBANs), I can give you here my account number, you'd be able to do NOTHING with it, nothing but GIVE me money.

To withdraw in both continent you'd need a pin or a signature + a tamper-proof ID card. The web app in Hong Kong has 2 passwords + 2 private key phone checks + insta SMS sent on any output. My French bank resets the private key every 3 months and require a strong re-auth (SMS or postal mail).

To direct debit, in HK you can only trigger it from the source account by registering the target online, it can't be done the other way around, while in France you need a signed authorization - but I suppose that can be faked if you have a target entity already registered and fake signatures to a bank.

And you're telling me in the US I know your target bank account to wire you pocket money at your birthday, I can also just withdraw ? That can't be right sorry.

>And you're telling me in the US I know your target bank account to wire you pocket money at your birthday, I can also just withdraw ? That can't be right sorry.

Yes, it can be and it is right.

How hard is it to get those debits reversed?

Here in the UK while it's super easy to set up a fraudulent direct debit on someone else's account details, it's equally easy to claim those payments back (and the scheme guarantees you the right to be able to claim a payment back for any reason, doesn't even have to be fraud - the merchant can of course still chase you if you've declined a legitimate payment you owe them).

You can pull from an account you don't own? This sounds completely insane.

Yes — and it doesn't require anything more than a typo. Whether or not the banks will reimburse it will depend on the bank and whether the money has already moved from the target account. It's never fast but I've heard at least a few stories about complete nightmares where the bank was essentially accusing the victim of fraud despite having utterly failed to protect their customer.

Thank you for responding. It is really horrible it sounds like you can not really be safe. Really strange that the owner is not authorising the payout from his/hers account.

Yup. Welcome to ACH.

well its the same in europe but its not that this is happening. the information (IBAN) you need to wire money via SEPA transfer can also be used to fake an automated SEPA debit system for subscriptions.

E V E R Y german company has their SEPA information on almost every piece of writing that leaves the company (in the footer) and thus far i think widespread misuse/fraud is not really a thing.

The debit system for sub here in HK is only possible on the user side. You can't automate it like in Europe, the dude has to go to his own account and register it himself with the company's target account.

But what you say must be impossible in SEPA too - to fake a sub registration you'd have to register with a corporation ID as a subscription receiver in the SEPA area. I'd suppose at least you fraud one person you're immediately found. But it's also that you probably can't even register without at least a sort of reputation check.

It depends on the company and the role. In general, I would be prepared for some white boarding questions, although I've found they're generally "a little easier" than the ones the engineers whine about.

A fun tech side of this post is that the random walk visualization is an SVG that is generated live on the page, and hence new each time. Very cool!

The code: https://lemoing.ca/scripts/knight.js

Glad you appreciated it!