David Levitt

Iron Maiden Maniac and Software Engineer.
AKA Myrddin in various games...

[BossLogic @Bosslogic]

We’re holding off on rolling out today.

We lost a huge part of our childhood and adult lives today with the loss of the legendary Peter Cullen, the man who gave the world so many iconic voices.

The story he always shared about his brother, and how much his brother inspired the heart of Optimus Prime, is something that genuinely made me closer to my own brothers.

He will forever be the Prime example of what it means to be good, to be strong, and to lead with heart.

Rest in peace, legend. ❤️

[David Levitt @dclevitt]

@LUCKYY10P Lot of great memories but one that will always stand out is when you and muscle helped me and my son get recluse 😊

[Amazing Physics @amazing_physics]

The Devil Horns Solar Eclipse
Is one of the rarest sunrise ever photographed and was stunning.

[Microsoft Developer @msdev]

TypeScript creator @ahejlsberg puts TypeScript 7 through its paces, compiling the 2.3M-line @code codebase in under five seconds, and breaking down how the new 10x faster Go-powered compiler and language service scales with shared-memory concurrency.

[David Fowler @davidfowl]

All of this https://t.co/DIrGAsaEej

[Phil Labonte 🇺🇸 @philthatremains]

this was literally EVERYTHING to me when i got my hands on them.

[Gergely Orosz @GergelyOrosz]

Anders Hejlsberg (@ahejlsberg) is a living legend: he created Turbo Pascal, Delphi, C# and TypeScript (and today TypeScript is the most-used programming language, globally, as per GitHub.)

Timestamps:

00:00 Intro
02:48 How Anders got into programming
05:40 Building his first compiler
07:44 Turbo Pascal
12:25 Delphi
14:53 Joining Microsoft
19:41 Building C#
29:11 Async/await
34:01 The rise of JavaScript
37:52 Building TypeScript
42:58 How the TypeScript compiler works
48:30 JavaScript’s strengths and weaknesses
52:18 How Anders uses AI
56:03 What language features work well with AI
1:02:49 How software craftsmanship is changing
1:07:49 Performance and efficiency
1:09:29 Anders’ tool stack
1:11:30 A 30-year career at Microsoft
1:13:40 Book recommendation

Brought to you by:

@AntithesisHQ – verify your system’s correctness without human review or traditional integration tests – and avoid bugs or outages. https://t.co/AKYm4cctss

@WorkOS – Everything you need to make your app enterprise ready. https://t.co/jhFNq3aFcF

@turbopuffer – a vector and full-text search engine built on object storage. It’s fast, cheap, and extremely scalable. https://t.co/w9y67GsFZJ

Four things that stood out to me:

1. “10x better for 1/10th of the price” is a proven winner.

This is what Turbo Pascal did: it sold for $49.95 when competing compilers cost $500, and it was faster and more interactive than competitors’ products. Conveniently, the low price tag also killed off piracy

2. C# might have not existed without a famous court case.

Microsoft originally hired Anders to architect its Java tools (Visual J++), but the Sun versus Microsoft lawsuit (1997-2001) meant Microsoft could not build on top of Java, as the company that owned Java’s IP (Sun) sued MS for alleged unauthorized changes to the Java language. Microsoft realized it had to build a new language that combined VB’s productivity with C++’s power. This led to C# and .NET.

3. TypeScript exists because Anders refused to build Script# for the Outlook .com team.

Microsoft’s Outlook .com team asked Anders’ C# team to productize “ScriptSharp,” a language to cross-compile C# to JavaScript. Anders and the C# team pushed back, suggesting that a better approach was to fix JavaScript. Anders felt strongly that to be attractive to the best-of-breed developers in the JavaScript ecosystem, you want people to write JavaScript, and not another language like C#.

4. Designing a programming language is a 10-year play.

As Anders puts it: “Version one is great, but has all sorts of issues. You’ve got to do version two, but it’s not until version three that it really starts to be great. Then you’ve got to convince people to adopt it.”

[Codeth @Codeth]

@abieeyy_ Why? Just use a can opener like a normal person

[Cyber_Racheal @CyberRacheal]

Linux 💀

[Bill Brown @billbrown]

HAH!

[Iron Maiden @IronMaiden]

“If you’re an Iron Maiden fan, you’re part of one family”

IRON MAIDEN: BURNING AMBITION, exclusively in cinemas from May 7.

@universaldocs, @trafalgarrel

[Gladd @Gladd]

Ima make it easy for everyone:

Lose weight = caloric deficit
Gain weight = caloric surplus
Lose fat = high protein, caloric deficit
Build muscle = resistance train, high protein
Build muscle & lose fat = resistance train, high protein, caloric deficit

[Killswitch Engage @kseofficial]

Big tour announcement... Let's Go!!

Limited artist presale starts today at Noon ET. Use password: KSETHISCON2026

[Iron Maiden @IronMaiden]

The poster for IRON MAIDEN: BURNING AMBITION is here! Releasing exclusively in cinemas from May 7. Tickets on sale March 18th!

The film charts five decades of one of the most iconic journeys in music history.

Head to https://t.co/kTHUGEzjlw for more

@UniversalDocs @TrafalgarRel

#IronMaidenFilm

[Marty Friedman @marty_friedman]

This is so beautiful-

[Red Pill Dispenser @redpilldispensr]

Profound words of wisdom from Alan Watts.

"One day you'll realize you've already lived through some of the best days of your life and you didn't even know it at the time."

"You were too busy chasing what's next, busy worrying about what's missing. Thinking happiness was something you'd arrive at one day."

"But while you were waiting you were laughing with people who won't always be around. You were making memories in places you'll one day drive past and feel something you can't explain. You were standing in moments that didn't feel like the good old days until they were gone."

"So stop waiting for life to start. You're already living it."

[Erik Porter @HumanCompiler]

Perfection. 😂👏 AI getting so good! 💀

[David Levitt @dclevitt]

@John_Papa @runDisney Congrats!