tl;dr I’m burying the lede with context and catch-up material first, so impatient or already-clued-in readers should skip to below the videos for today’s big news. Or just read Luke Wagner‘s blog post right now. My Fluent 2015 “ECMAScript Harmony: Rise of the Compilers” talk given on April 21st: Jeremy Ashkenas picked up this ball and ran into the next field’s end zone two days later in Brooklyn: