raphaelj

Well, you can still probably reduce the training computational cost by feeding the additional FFT features to your NN.

Assembled in China would be more accurate.

Modern supply chains are really complex. Your laptop might uses chips manufactured in Taiwan by Dutch lithography machines, have a screen build in South Korea using German automation devices, run on software made in the USA, all shipped on a Japanese-build vessel.

I few years ago, I wrote another substring search algorithm that is outperforming this one on a modern computer: https://github.com/RaphaelJ/fast_strstr/tree/master/benchmar...

While the algorithm is time linear (Boyer-Moore is sub linear), it ends up being significantly faster on textual content as the per character operations are significantly simplier.

In the case of web/RESTful services, I'm just relying on Heroku/Dokku.

Could go the other way too. Having had COVID with some strong symptoms can make you more prudent as you might fear to get infected a second time.

This is one of the best read I had in a long time. Too bad the pictures are not in higher definition.

I've been working 4d/week for 4 years for a small Belgian company. I'm a software engineer.

I've never got any complain from my manager, employer or colleagues about it.

I'm usually taking my day off on Friday. All my colleagues know it, so we will try to schedule meetings for which I'm required on other days. If that's not possible (it only happens a few times per year), I'm flexible enough to take my time off some other day.

I might be 90% as productive compared to when I was when working full-time. This difference is probably too low to be noticeable by anybody else in the team.

My gross got reduced by 20%. But considering the way taxation works in Belgium, I'm only getting about 10% less on my bank account. I also got promoted to a senior role since then, which entirely offset the difference anyway.

While it has been working extremely well for me (I spent the additional free time doing physical activities and launching my personal project [1]), it might be harder/impossible to get into higher positions (team leader, project manager...) while working part-time.

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[1] https://noisycamp.com

I had the same feeling. A lot of the things that NASA develops internally are mindblowing (e.g. the Mars rovers or the Casini probe, both developed by JPL), but everything subcontracted to Boeing or Lookeed endup uber delayed and hyper expensive.

Exactly.

And with respect to the counting, it seems like the Belgian numbers more of less match the reported excess deaths in 2020 within 10% [1].

[1] https://www.medrxiv.org/content/10.1101/2021.01.27.21250604v...

That seems pretty low compared to what is happening here in Belgium.

We are at 22k deaths with +/- 25% of a 11M of the population having been infected (based on serology and statistical estimates).

I’m pretty confident they have efficient fire suppression systems.

They are hosting at least 400,000 servers. They for sure have multiple servers taking fire every single day, and yet it’s the first time it ends up in a catastrophic fire.

The fire suppression system either catastrophically failed, or something out of design happened with one of their inverters, as suggested in the video.

Do you have a source for the “years ahead”. Not being sarcastic, I’m genuinely interested.

Indeed. One could look at the GDP per hour worked.

France and Germany GDP per hour worked is only about 6% less than the US (while it was mostly the same until 2008) [1] [2].

Seems like most of the difference can be explained by stronger work-life balance policies chosen by European (sick days, holidays, earlier retirement and parental leave).

[1] https://i.imgur.com/zuZ4pYz.png [2] https://data.oecd.org/lprdty/gdp-per-hour-worked.htm

Are they planning to use the same ships to land on Mars and on the Moon ? You'll not be able to slow down (as much) using air resistance there.

The high resolution, 360 panoramic view, of the landing site is also stunning:

https://mars.nasa.gov/news/8873/nasas-perseverance-rover-giv...

The amount of work that went to this is insane. She made a (full ?) implementation of libc: https://github.com/jart/cosmopolitan/tree/master/libc

A payload reduction of 30-40% is huge. And even if refurb and recovery is less than 10%, you still loose the 2nd stage at every lunch (18% of the rocket by weight). You then have to include the extra development costs and additional risk of failure.

I highly doubt they hit break-even with only two launches, the math just doesn't add up.

If reusing rocket was so profitable, there is a high chance someone else would have done it before. Landing a rocket isn't totally new tech. NASA did it on the moon 50y ago.

In the video, the French-speaking news anchor says that one of the biggest challenge was to convert the DC from the engine to AC (around 1:10).

How could you know? SpaceX never landed or sent a craft on a foreign body.

NASA's ability of succeeding at landing things successfully on the first try on foreign bodies since 1969 is mind-blowing.

Meanwhile, SpaceX takes half a dozen tries before managing to do the same on a fully known environment on Earth.

Population density is significantly higher in Europe than in the US.

One could argue that clinical trials are part of the development process.

Ok

C++ makes simple concepts so complex some time. I can't describe how disappointed I was when I used `std::variant` for the first time.

Isn't it exactly what happened? Some vaccines started large scale tests around March/April.

It's just that you have to wait a few months to know if the vaccine you're testing is effective. You can't make this delay shorter with more volunteers.

And when you're fighting a decease that "only" kills 0.5% of the people inflected, your risk margin is pretty low (what if your vaccine creates deadly consequences to 0.6% of the people vaccinated?).

The most important thing is to avoid proprietary services and uses OpenSource alternatives instead. Like, avoid AWS Aurora and use PostgreSQL instead.

That will make it almost trivial to move from one provider to another.

I'm developing an Airbnb for musicians: https://noisycamp.com

The website is made to make it easier for musicians to find and book rehearsal and recording spaces.

It's made using Scala and Vuejs.

It's half baked in the sense that I only have a few studios yet. Barely usable for a few groups of people then :P.

During the spring, I released an open source Bluetooth tracing app for Covid-19: https://github.com/RaphaelJ/covid-tracer

The app is fully working, and supports most of the privacy protection that one could find in the most advanced apps.

It's also my first app built using Xamarin.

Just released my MVP for my ‘Airbnb for Musicians’: https://noisycamp.com

I don’t have that many studios yet, but my goal is to make it super easy for musicians to find and book practice and recording spaces.

I built the website using Scala, Vuejs, PostgreSQL, running on top or Heroku and BunnyCDN. The code is Open source: https://github.com/RaphaelJ/noisycamp.com !