I love these videos, it's the kind of no BS programming to press performance on modern computers. Also recommend the Handmade Hero series of him.

We have computers which are ridiculous fast, but tend to write code which is freaking slow. It's sad that most programs could be 100x faster.

I wonder how much performance is gained by having the code written by just one person. At work we have a reasonably large (16 MLOC) codebase. At this point I don't think it's possible for one person to do everything, especially while adding new features. So what we do is that we create relatively clean interfaces, and have people code mostly inside those interfaces. But every time we go through one of those interfaces, there's a performance hit.

3 hour video with no timestamps, a minimal description, and comments turned off?

This was good. I like the presentation.

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This can be a good interview question for Google to screw people over.

I was asked to write a code to generate maze (100x100) with the constraints that it should neither be easy not it should be hard. This was for L6 position.

So does he have a special reversed image printed on his shirt just for this lecture format?

So this guy has had a t-shirt printed with a mirrored logo just to be able to use it with the transparent whiteboard.

I really like this lecture format. What is he drawing on?

That's exactly how i managed to enhance the performance of my site. https://vashishthakapoor.com/ Keeping the features along with performance is a big challenge. Video is really explainatory to fix performance issues.

"Simple code" -> very difficult to decipher use of SIMD intrinsics. Yikes.

He may have deleted 1000 lines of code, but he'll need a 2 hour inline video (with a 1000 line transcript) to explain how it works.