Haskell is one of the most popular functional programming languages but it has not found much use in the embedded space.

“Haskell is like a programming language from an alternate future that is never going to happen,” he says. “It solves all these problems it promises to solve.

Haskell is a 25-year-old programming language that isn't all that popular. But Facebook uses it, and that's a sign of things to come.