Sorting Algorithms: Speed Is Found In The Minds of People - Andrei Alexandrescu - CppCon 2019

What people said

bboreham · 2023-12 · Strong recommendation

I really enjoyed “Speed Is Found In The Minds Of People”, a talk by Andrei Alexandrescu. At first he is just showing simple stuff, but stay with it, he goes deep. [VIDEO]

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jiggawatts · 2023-01 · Strong recommendation

Not exactly a lecture series, but Andrei Alexandrescu has had some fantastic keynote presentations at CppCon. I don't even program in C++ any more, but I've watched these more than once, they're entertaining, approachable, and inspiring: Speed Is Found In The Minds of People [VIDEO] std::allocator Is to Allocation what std::vector Is to Vexation [LINK] An actual lecture series I've enjoyed watching is "The WE-Heraeus International Winter School on Gravity and Light", which covers General Relativity using modern mathematical approaches: [LINK] Again, I haven't done physics in 20 years, but I've found it surprisingly easy to follow because it is so clearly presented.

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r_sreeram · 2023-09 · Recommendation

Here's an excellent example of what GP said: [VIDEO] (long video, skip to 26:00 if you are in a hurry) The key is that code isn't running in a vacuum. It's operating on data (or controlling systems, etc). A smaller amount of code may be operating on the data in an inefficient manner, whereas a larger amount may be doing it more efficiently. In the above talk, this contrast is very stark, because the "more code" version does some stuff and then does the exact thing the "less code" version does, yet is faster. This kind of thing is common enough (albeit less stark than in the above example), that "less code is faster" is not a great "default" assumption to make.

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