MikeDelta

Don't forget their massive investments in technology to be the first for those pennies (high-frequency shops, custom machines colocated at exchanges, etc).

There are also specialist market maker roles for specific products, which don't have to use these systems, but those are professionals in niche markets too illiquid for the big shops.

Chapter 9 talks about unit tests and there is a paragraph called 'Single Assert per Test', where he says it is a good concept but that he is not afraid to put more asserts in his tests.

That paragraph is followed by 'Single Concept per Test' where he starts with: 'Perhaps a better rule is that we want to test a single concept per test.'

So, technically he doesn't say it.

The point of the post by my fellow HN person was to give you feedback on your communication style.

You obviously have interesting things to say and opinion to share with a fair amount of passion, but the tone detracts from the message, which I find a pity.

The photon actually experienced only one minute* and you one hour, that is what the clocks would show. The photon sees you one hour older and you see the photon one minute older.

It is like the waterplanet in the movie Interstellar (I think it was that planet), where they spent a short while on the surface and the person in space aged decades.

It is called time dilation [0] and there was a rather interesting experiment done by Hafel Keating [1].

* Interesting to know: time slows down to a halt at the speed of light, and the one second time lapse of the photon goes to zero no matter how long you wait on earth.

[0] https://en.m.wikipedia.org/wiki/Time_dilation

[1] https://en.wikipedia.org/wiki/Hafele%E2%80%93Keating_experim...

I didn't write to explain what an abstraction is, and I will assume you honestly meant to congratulate me instead of trying to be sarcastic. Thank you for that.

I have had two types of developers in my teams: one type that understands the underlying technology of the abstractions that they are using, and one type that only understands the layer/abstraction they are interacting with and blissfully clueless about anything underneath.

Neither group worries about transistors or proton decay in their hardware, and both can make 'things'. However, one group is much more capable of effectively building tools and understanding issues when something goes wrong in the chain, whereas the other group is regularly hopelessly lost because they have no clue of what is happening. I'll let you guess which is which.

This is not about worrying or even being bothered with details, but about understanding what you're working with.

And upstream turbines will take away the wind from the downstream ones, making them less useful in closely-built environments.

'Tis a field riddled with yachts... but where are all the customers' yachts?

In the end, almost everything runs on some kind of OS. All those little functions in the void also have to run in an OS, but this is abstracted away from the user.

The title made me think it was about Snowflake the DB company indeed.

In the James Bond movie You Only Live Twice the nefarious SPECTRE smuggled* liquid oxygen together with butter, making everyone think the shipment of "butter and lox" was the fish and not the rocket fuel component.

* Perhaps transported is a better word, as they were quite transparent in that they were transporting 'lox'.

Looks like a donut eating a cellist.

I thought this was about different numbers like rational and complex, but it is about number representation (of floats), see also https://en.wikipedia.org/wiki/Unum_(number_format)#Unum_III

The breath training they are referring to is breathing through a device with flow resistance, making it harder to pull in the air. (30 times per day for six weeks).

Strengthening the breathing muscles is what improves the blood pressure, according to the article.

The ' stands for (first-order) derivative. The second would be '' and so on.

sin(0)=0, sin'(0)=1

tl;dr: sleep more

I think that the force response would be like that of a tug of war with the horses on the other side. The balls wouldn't add anything other than a heavy weight, and the process of splitting would be quick as the vacuum is filled up again (not like a rubber band or so), which could feel like a breaking chain or rope to the horses.

I found this video quite illuminating, where a law professor explains why even with the best of intentions one shouldn't talk to the police. https://youtu.be/d-7o9xYp7eE

FYI: valley fever, caused by a fungus living in the soil.

I think google and the other engines are part of the problem: ads, walled gardens, fake sites, and more.

A colleague showed me a website the other day from 2013 that was an absolute jewel in terms of knowledge. I am sure more recent sites like that exist, but I am afraid finding those with google are almost zero.

I wonder how long it will take before aftermarket shops appear that can crack and activate all those modules.

AGI is Artificial General Intelligence, for those who were wondering.

Just speculating (I hope) but curious what others think.

Say that a video is flagged, user gets the above response and user simply deletes the video. To me it feels like an implicit admission, not having any additional information like "you were right, sorry" or "it is totally incorrect but easier to do this than to fight it".

And say only this metadata is stored, not the video itself, it becomes impossible to judge afterwards.

And say once in a while these logs are reviewed by another party (law enforcement perhaps). Might that be sufficient to end up one some kind of watch list?

What is the certain way that was used that makes people think it was a professional? A clean cut is easier to fix that a hacksaw cut, but the technician can always cut off an extra piece to have a clean cut to join. A large missing piece is harder to fix, but even non professionals could think of that. Not sure what else was done to those cables.

For me Nemo studios have such a mysterious vibe. I can imagine Vangelis walking around the city and spending days and nights making his music there. Must have been amazing times.

He will not be forgotten.

The impact of a higher precision in pi depends on the rest of the calculations or simulations; factors like the (roundoff) errors caused by the size of your floats and your other constants, the precision of your calculations (like your sine), or (roundoff) errors in your differential equations and timestep accumulations. And finally, you have uncertainties in the measurements of the world (starting conditions) you use for your simulations. I guess in NASA's case, a higher precision in pi doesn't add to the overall performance of their calculations, or at least not to a relevant one.

There may be others who are smarter, but that doesn't mean they write better, or even bother to write at all.

I remember reading an article a long time ago about a passenger finding a (mock)weapon in his luggage. Turns out it was put in there by a government organization to test the process through security, except that they forgot to take it out again. I cannot find the link unfortunately.

Maybe the dark web makes people feel safe and they let their guard down? I cannot imagine why else someone would use their own email address in any transaction or operation.

It it quite detailed, impressive. Brave use of the title font as well.

I remember looking at a group of four a while ago and noticed the next day that someone had polished the copper and put flowers around it. Very touching.