Ciro Santilli @cirosantilli 35

This dude is generally viewed as a God. His incredibly understated demeanor and tone certainly help.

Full set of all possible special relativity symmetries:

In simple and concrete terms. Suppose you observe N particles following different trajectories in Spacetime.

There are two observers traveling at constant speed relative to each other, and so they see different trajectories for those particles:Note that the first two types of transformation are exactly the non-relativistic Galilean transformations.

The Poincare group is the set of all matrices such that such a relationship like this exists between two frames of reference.

When you fail a HR interview, then you know you've reached rock bottom.

Investments:

This ISA basically completely dominated the smartphone market of the 2010s and beyond, but it started appearing in other areas as the end of Moore's law made it more economical logical for large companies to start developing their own semiconductor, e.g. Google custom silicon, Amazon custom silicon.

It is exciting to see ARM entering the server, desktop and supercomputer market circa 2020, beyond its dominant mobile position and roots.

Ciro Santilli likes to see the underdogs rise, and bite off dominant ones.

The excitement also applies to RISC-V possibly over ARM mobile market one day conversely however.

Basically, as long as were a huge company seeking to develop a CPU and able to control your own ecosystem independently of Windows' desktop domination (held by the need for backward compatibility with a billion end user programs), ARM would be a possibility on your mind.

Besides being useful in engineering, it was very important historically from a "development of mathematics point of view", e.g. it was the initial motivation for the Fourier series.

Some interesting properties:

Sample numerical solutions:

Once upon a time (early 2010's), Eclipse dominated the IDE landscape and all was good. NetBeans was around too. And Java was still unmarred by Google LLC v. Oracle America, Inc..

But then something happened.

For some reason, Eclipse started to decay.

And the project that had once been a vibrant community of awesomeness, started to become... a zombie of its former self.

Buggyness started increasing. And not even hard to fix bugs. One liners that affect every user immediately after startup.

Sometimes, to Eclipse's defense they weren't "bugs". Just features that it became evident with time every programmer expected from a modern IDE.

But somehow the Eclipse community had a deep problem. A cancer. It had completely lost touch with user experience.

Perhaps is was due to the increasing interest of the several corporations that had adopted Eclipse as the base IDE for the proprietary solutions?

Perhaps.

Many users stuck to the IDE.

Some heroic efforts were made as plugins that drastically improved certain defects. The Darkest Dark plugin comes to mind.

But all those efforts required configuration. A setup time that most users simply don't have. The core devteam had become dumb and dead, unable to incorporate such changes.

This greatly opened up the space for other competing IDEs to come along. The "semi feature complete but at least easy to use and not so buggy" Visual Studio Code and the proprietary JetBrains IDEs being some of the most notable ones.

Using Eclipse as of the early 2020's is such a mixed experience. If you spend enough time to configure out the key buggyness, there are moments where you can feel "OMG, this feature is amazing".

But the effort is just too great, and soon another bug or obvious missing feature hits you and brings you back to reality.

Every young person uses VS Code now. Eclipse is dead, and there is no way back, usage will just continue dropping.

RIP, Eclipse. It wasn't meant to be.

Bibliography:

However, many, many, many terrible horrors come with it:

This is one of the main reasons why Ciro Santilli invested in OurBigBook.com.

Ciro believes that the only thing students must be forced to learn is to speak read and write English and that a teacher's main job after that is to help students find their next big goals and also ties into the backward design philosophy.

Everything else, the student must choose.

This idea is generally known as self-directed learning.

This is most notable in University entry examinations of poor countries, where students often have to waste one extra year of their lives to go through preparation for the useless university entry exams. And then, surprise surprise, if they actually get in, they find that this is not what they really wanted to do, and they just go through to the end miserably because they understandably they don't want to risk another year of their lives.

And importantly: It must be easy to change your area of study.

Ciro saw this first hand École Polytechnique which was way freer than his university in Brazil.

Steve Jobs's university dropout stories from Steve Jobs' 2005 Stanford Commencement Address also come to mind.

Interesting projects:

Godfrey Hounsfield, 1979 Nobel Prize in Physiology and Medicine:^[ref]

Related ideas:

What you Google-into when trying to understand English slangs as of 2020.