Diego M. Escalante

touch bio.txt

[Rebane @rebane2001]

i built an entire x86 CPU emulator in CSS (no javascript)

you can write programs in C, compile them to x86 machine code with GCC, and run them inside CSS

[Diego M. Escalante @escalant3]

La plataforma de @UNED no funciona desde @movistar_es pero sí desde Simyo y Digi. Porque hay fútbol. ¡Qué país!

[Eric S. Raymond @esrtweet]

I'm about to do something I think I've never done before, which is assert every bit of whatever authority I have as the person who discovered and wrote down the rules of open source.

After ten years of drama and idiocy, lots of people other than me are now willing to say in public that "Codes of Conduct" have been a disaster - a kind of infectious social insanity producing lots of drama and politics and backbiting, and negative useful work.

Here is my advice about codes of conduct:

1. Refuse to have one. If your project has one, delete it. The only actual function they have is as a tool in the hands of shit-stirrers.

2. If you're stuck with having one for bureaucratic reasons, replace it with the following sentence or some close equivalent: "If you are more annoying to work with than your contributions justify, you'll be ejected."

3. Attempts to be more specific and elaborate don't work. They only provide control surfaces for shit-stirrers to manipulate.

Yes, we should try to be kind to each other. But we should be ruthless and merciless towards people who try to turn "Be kind!" into a weapon. Indulging them never ends well.

[tobi lutke @tobi]

Huge and important change.

[Alessandro Palombo @thealepalombo]

I'm Italian.

Over the years, it's been painful seeing Europe’s demise:

1960 - EU was 36% of global GDP
2008 - US GDP surpassed EU
Today - US economy 50% larger than EU

But why such a decline and is there any hope?

Here's everything you need to know about the fall of Europe:

[Devon Eriksen @Devon_Eriksen_]

The first entity to establish a Mars colony will be the universe's first trillionaire.

Lately, we've had a lot of puddlefish whining about how "we" shouldn't go to Mars.

Some of them actually think they get a vote, based on economic illiteracy and the delusion that SpaceX is somehow part of the US federal government.

[Closed caption for the hard-of-thinking: it isn't.]

But others just think they are giving good investment advice... SpaceX investors can do what they want, but Mars is a frozen wasteland full of nothing but near-vacuum and rocks. So why would anyone want to go there?

@elonmusk likes to answer this question by pointing out that it's not a good idea to store all humanity's eggs in one basket.

He's right, but this kind of argument isn't comprehensible to everyone, nor is it the full picture.

So now it's the SF writer's turn. And therefore I present to you...

An Economic Roadmap for the Future of Humanity.

(In which Devon Eriksen explains how to bring about a second industrial revolution, and what the next step is on the road to becoming a Kardashev-1 civilization.)

The invention of manufacturing, and the transition from an agricultural to a manufacturing economy, is called the "Industrial Revolution" because its effect on the state of not only the economy, but daily life and the entire human world, was... revolutionary.

Unprecedented.

Unimaginable.

Understandable only in hindsight.

Everything changed.

Imagine trying to describe the modern world to your preindustrial ancestors.

"We took that black stuff that seeps out of the ground, set it on fire, and used the fire to turn things that do the work of skilled craftsmen, only thousands of times faster, and now we all have horseless carriages and talking abacuses that can send a message to the other side of the planet in the time it takes to cough."

This would sound like nonsense.

Because to them, tar was just sticky black stuff that you find in the bottom of bogs, and coal was a dirty rock, and steam was the stuff that came out of your tea kettle.

And Mars... well, Mars is just a frozen, airless, desert... right?

To bring about technological and economic revolutions, you have to learn to see value in new ways.

The conquistadors who first introduced civilization to the Americas were looking for spices and gold. That was their definition of "value".

But if all they found was gold, all they would have gained was an unprecedented economic crisis. With their preindustrial knowledge of economics, they didn't understand that gold is a token of value, not a store of value. A massive influx of gold alone would have brought about unprecedented inflation.

Ouch.

Fortunately for Europe, civilization, and humanity, they found real value as well, of sorts they were looking for.

Land. Timber. Navigable rivers.

Potatoes.

Yes, potatoes. Laugh it up, fuzzball, but potatoes allow you to feed populations you just couldn't before. With less farmers.

More workers. More craftsmen. More geniuses to invent things.

More civilization.

Potatoes.

So... Mars is just a frozen, airless, desert... right?

Well, for those of you who can read between the blatantly obvious lines, maybe not. But... how?

Well, what do you need for an industrial revolution?

You need a new source of cheaper energy. The first one had wood, coal, and oil, replacing animal labor, and wind turbines, which are only suitable for grinding flour for medieval peasants.

You need cheap raw materials. The new world abounded with timber and ore. And bigger populations, from better crops, and new energy sources meant cheaper mining.

You need clever people to figure out new technologies. The West was never short of smart people. And now they had more than ever.

You need a permissive legal environment. Enterprises that push the technological envelope tend not to be established companies trying something new. These entities already have their revenue model. Instead, new tech comes from startups, all the way from well-funded, high tech enterprises, to the often-surprising ingenuity of three dudes in a shed.

The first industrial revolution had America, and England, which at the time were quite capitalist.

Cheap energy. Cheap raw materials. Technically educated people. Free market capitalism.

In order to have a new industrial revolution, you need an order-of-magnitude increase in some, or ideally all, of these things.

Now we are ready to answer the question "why Mars?"

The next level of the human economy is post-terrestrial, and it rests on three pillars as its foundation: Earth, the asteroid belt, and Mars.

Earth:
Right now, Earth is everything. It's where we keep all our stuff.

In the future, Earth is merely very important. It's where people want to live. It's the swanky real estate. It's not only where you store most of your people, it's where you especially store anyone who works with data, and therefore doesn't have to be in any particular place to do his work.

Earth is the suburbs. It's the Hamptons. It's Myrtle Beach and Key Largo.

In the near future, it's also where your food comes from, but in a post-terrestrial economy, that changes quickly with hydroponics and genetic engineering.

The Asteroid Belt:
This is where your accessible raw materials are. And it beats Earth not just by an order of magnitude, but by many.

To understand why, here's physics lesson number one, gravity wells.

We've all heard the local gravitation fields of planets referred to as "wells", but to fully understand, we really need to lean into the metaphor. It explains a lot.

Imagine Earth's gravity as a deep, deep pit. Steep sides, hard to get out of.

And heavy stuff sinks to the bottom.

Don't believe me? Can't fully visualize it?

Try it yourself. Fill a jar with sand, water, and lead buckshot. Shake the jar, watch it sort itself. Layer of buckshot at the bottom, layer of sand on top of that, clear water at the top. Yes, the lighter stuff will fill the gaps in the heavier stuff, but all the heavier stuff will sink to the bottom.

Well, the Earth is like the jar. It's got a core of iron and heavy radioactive elements, and the lighter stuff is on top. The only heavy elements and metals we can mine on Earth are the small amounts near the surface, which are there because the Earth isn't as fluid, and hasn't been shaken quite as hard, as that jar.

Which means that the Earth is a metal-poor, heavy-element-poor environment. We just don't think of it that way because it's what we are used to. And it's a major bottleneck holding our industrial development back. Not because these elements will run out, but because the expense of extracting them limits availability, and drives costs up.

So what about the asteroid belt?

Well, the mass of the asteroid belt is roughly 0.05% of Earth's mass. But, unlike the Earth, the asteroid belt isn't a big lump of material, sitting in its own steep gravity well.

It's a powder. A spray of fine dust orbiting the sun. The largest asteroid is only about the size of Texas, and most are much smaller.

And the thing about powder is that it has a really high ratio of surface area to mass. Everything is near the surface, because surface is all there is. Not only can you cut in easily, you can break the whole rock apart to get at the valuable stuff inside.

And is there ever valuable stuff inside.

One single asteroid, 16 Psyche, some 140 miles across, has an estimated value at today's market prices of 100 quadrillion dollars.

You read that right.

That's roughly 900 times the value of the entire world economy. All of civilization. Everything.

One asteroid.

Now, does that mean it would actually sell for that much?

Of course not.

What would happen, if you extracted all that stuff is that the market prices of all those metals and heavy elements would crash. They'd all become dirt cheap. In fact, that's a poor metaphor, because dirt would be a lot more expensive than iron.

We'd be making bullets out of gold.

But, unlike the gold the conquistadors brought back, these metals aren't just tokens of value, only useful as currency because they are rare. They have inherent value, because you make stuff out of them.

So all the stuff you can make out of them would get a whole lot cheaper.

That's... pretty much everything.

But what about all the energy we would need? Well, space solves that, too.

If you're close to the sun, and you have some kinda solar panel fetish, you use those. No air in space, no weather, nothing to get in the way, just point them at the big bright thing for free electricity.

If you're not close to the sun, or you just don't like dicking around with second-rate methods, well, there's plenty of everything in the asteroid belt, including fissionables.

Really, the energy problem has been solved for over 50 years, but that solution has been held back.

See, on Earth, we have these things called "governments", which is a fancy name for a bunch of theater kids who studied liberal arts in college, and aren't good at anything but stuffing ballot boxes and taking bribes. Their hobbies include banning things they don't understand, regulating things they don't understand, and visiting their best buddy Jeff on his private island.

But there aren't any of them in space. And if they go there, well good luck enforcing your "regulations" on a volume of 3.59×10^30 cubic kilometers.

So fissionables, the real energy solution until we solve fusion containment, are back on the menu.

The fact that traditional territory-based governments don't work so well in space also solves our need for free market capitalism.

So, cheap energy, cheap raw materials, free market capitalism, and smart, technically educated people.

It's all there.

So where does Mars come in?

Mars:
Around now, someone will be objecting that asteroid mining ain't so cheap.

Sure, all that shiny stuff is lying around in plain view, but getting there is really, really difficult. At least for now.

Yes, that's true. But how is it difficult? In exactly what way?

Time for physics lesson number two. This one is also about gravity wells.

If you go back to thinking about a planet's gravity as a well or pit, then you can think about the solar system as a sort of flat surface (actually a gently sloping bowl due to the gravity of the distant sun), with deep pits in it representing the planets' gravity.

Well, the hard part it getting out of that pit.

The reason "rocket science" (actually rocket engineering) is so hard that it's a euphemism for really hard stuff is that we live in a really deep gravity pit.

Earth's gravity exerts a constant acceleration of about 10 meters per second per second on everything near its surface. That means that everything near the surface is going to fall, picking up speed, until it finds something to rest on.

To accelerate upwards so fast that you rise up out of the pit despite gravity, you need a powerful engine and a lot of fuel and something called reaction mass, which you don't need to worry about reading this beyond knowing that all those things are heavy.

Because they're heavy, you need a still more powerful engine, and still more fuel/oxidizer/reaction mass.

Which are heavy.

And on and on and on it goes.

But, if you can do all that really, really hard engineering, and get out of that pit, then the gravity acceleration you must overcome to move away from the sun is 0.006 meters per second per second.

Which you could easily do by farting.

So Earth's gravity well is a climbing wall, but at the top of that climbing wall is a skating rink, and it's really easy to glide around.

So, much of the difficulty, if not much of the delay, in travel to the asteroid belt is getting off Earth's front driveway.

But what about Mars? Well, Mars's gravity acceleration is about a third of Earth's. A little over 3.5 m/s^2.

Rocket science is not so difficult on Mars.

[Closed caption for the hard-of-thinking: Devon is speaking comparatively. Rocket engineering is still difficult.]

So if you think SpaceX can move stuff to orbit cheaply now, with their fancy reusable rocket boosters, and all their lightyears-ahead-of-NASA space tech, and their $2 million dollar Starship launches, you ain't seen nothing yet.

On Mars, with its 1/3 gravity, and thin atmosphere, you wouldn't even need a rocket. Just fling stuff into orbit with a big railgun.

That's why Mars.

The value of Mars isn't the balmy weather, the fresh air, or even Deja Thoris in a chainmail bikini. It's the fact that here you have a planet, where people can live in sealed habitats (above or below the surface), and it's really, really easy to throw things into orbit, and get them to and from the asteroid belt.

In other words, if Earth is the suburbs, and the Belt is the mine, Mars is your industrial zone.

Hell, you don't even need to mine asteroids in place. Depending on the economics, you can just attach boosters to your smaller rocks and push them right into Mars orbit.

It's called a Hohmann transfer.

But whether you are moving metal from a mobile refinery, raw ore, or entire rocks, cargo is cheap to move in space, at least compared to space launch from Earth's surface.

Space isn't an ocean, you see. There's no waves, your cargo can't sink, and there's no air to slow it down.

So you don't load it up into a ship, and sail the ship somewhere. That's pre-spaceflight thinking. What you do is you tie your cargo in a big bundle, give it a carefully aimed push, and glide into a Mars orbit.

Then you make stuff out of it in your factories on Mars.

Then you toss it to Earth.

Takes a while gliding through the void, but so what? There's no crew to get bored or breathe up all the oxygen.

You just wait patiently and catch it on the far end.

Sure, reentry is a bit of problem, and you need heat shields and stuff, but that's a hell of a lot easier problem than making a rocket go the other way.

And you don't bother moving a lot of it to Earth. Because you can have all, or at least most, of your near-Earth industry on the moon. No reentry necessary.

Got all that?

If so we are finally done.

You now understand this:

A Mars colony is the next step in human civilization. It is not a token exploratory feat, but a critical center point of the post-terrestrial economy.

This is how humanity ascends, instead of dicking around on one single planet, fighting stupid little wars over stupid little oil fields and generally being the galactic equivalent of a bunch of stupid tribal yaboos with stone-tipped arrows and bone through our noses.

You and I and everyone else alive today are unfortunate enough to live in humanity's embarrassingly primitive poo-flinging monkey period.

But if we are not too stupid or ignorant to imagine what the next step looks like, we can lay the foundation for getting there.

Don't be a puddlefish.

[World of Engineering @engineers_feed]

Spiders are the only web developers that enjoy finding bugs.

[PLD Space @PLD_Space]

Esta es la primera cuenta atrás del lanzamiento de un cohete español🚀⏱️
Hemos demostrado que somos capaces de diseñar un lanzador, fabricarlo y hacerlo volar. Nos sentimos orgullosos de poder decir que estamos generando una capacidad estratégica nacional y europea.
Hoy más que nunca podemos decir que estos 12 años de trabajo y esfuerzo han valido la pena.
Esto es solo el principio...
#VamosMIURA

[Diego M. Escalante @escalant3]

@MyInvestorES Y cuando se activa? Por aquí Nino Ticias

[Usuario Arroba @u_arroba]

«No existe ningún gran genio sin un toque de demencia».
Séneca

[Diego M. Escalante @escalant3]

This is incredible!! 😬 So many memories... Best game soundtrack ever created! 🎧

[Dominic Szablewski @phoboslab]

Play the original wipEout in your browser: https://t.co/6WpTgi1ySq

Also check out the in-depth "Making-of" in my blog: https://t.co/9c7qmkoBrj

[Nick O'Brien @NickLovesSpain]

Tucked away in the southwest corner of Spain is the charming city of Huelva.

Whose province was the starting point of Christopher Columbus's first voyage to the New World in 1492.

Here's all you need to know for your next visit:

(a 🧵)

[Diego M. Escalante @escalant3]

Preposterous! ❤️

[Tube Time on 🟦☁ @TubeTimeUS]

SunOS 4.1.4 says it can't possibly be the year 2023: "WARNING: preposterous time in filesystem -- CHECK AND RESET THE DATE!"

sorry SunOS, there's nothing i can do to fix 2023.

[albita @FrauValenzuela]

Busco #Ayuda.
Hace 2 años, mi pareja y yo, después de mucho trabajo y esfuerzo, fundamos nuestra academia de ciencias en Badajoz. Ofrecemos clases de física, química y matemáticas para ESO, bachillerato y universidad tanto presenciales como online.

[Diego M. Escalante @escalant3]

❤️

[SimpsonDub🎙(Doblaje de Los Simpson) @SimpsonDoblaje]

🇺🇸Versión Original🇺🇸
🎶Mama took those batteries,
she took 'em away.
Mama took those batteries,
size double-A🎶

🇪🇸Doblaje España🇪🇸
🎶Mamá se llevó las pilas,
qué caradura.
Mamá se llevó esas pilas,
que tanto duran.🎶

[Diego M. Escalante @escalant3]

🙌🙏

[MARCA @marca]

#LaPortada ¡Cómo hemos disfrutado!

🎨 [Con la admiración eterna de @marca al gran Francisco Ibáñez, que nos ha dejado a los 87 años]

[Arturo Pérez-Reverte @perezreverte]

Con la muerte de Ibáñez, casi todos los que fuimos niños en España estamos de luto.

[Javi Carnicero 🏴‍☠️ @ListenToGordon]

Amazon enseña a escribir a sus empleados de forma excelente.

Y lo hace con tan solo 7 normas de escritura.

Que son una maravilla.

He pasado horas resumiéndolas, te las enseño en 2 minutos:

[Bernard's Café ™ @NostalgicoRetro]

Quizás no fuese el que mejores gráficos tenía, ni su IA era la mejor o tal vez tuviese algún que otro bug, pero lo que me pude viciar al Theme Park con mi 486 DX4 100Mhz no fue normal. Simplemente me hipnotizaba.

[Diego M. Escalante @escalant3]

@MyInvestorES