Lex Fridman

C++.

was the core language for close-to-hardware optimizations, memory efficiency across hundreds of millions of items.

They created RankFlow, a domain-specific language combining Python-like simplicity with C++ performance, rejected hybrid Python calling C++ approaches due to deployment complexity, version skew, and operational overhead.

I'm reading these things from their recent blog about it.

I highly recommend.

There's so many technical blogs about the various problems they're solving.

And they do this incremental phase type development deployment where they ship fast, optimize later, maintain compatibility always.

So in phase one was the first four weeks.

They built SimScore DSL, which is a basic C++ engine to unblock data science experiments.

And then in phase two, which took two to four months, they built Turbo DSL, which is a high-performance engine version of that.

which achieves 48% speed up.

There's so much more to talk about, but incredible engineering that brings you an incredible product at the end.

Sign up for a $1 per month trial period at shopify.com slash lex, and that's all lowercase.

Go to shopify.com slash lex to take your business to the next level today.

This episode is also brought to you by Miro, an online collaborative platform.

The very kind that the peoples and the civilizations of the ancient world that Irving talks about didn't have.

Now imagine that.

One of the great things about the competing ages is that we can work together.

It's not just the productivity gains for the individuals.

It's the productivity gains for teams.