Nothing. But that kid used it inside a coworking space.

I’m an old fuck and I started to code in the late 80s. Fast forward 30 years, I once had to work at a WeWork. One day, directly outside of my small office space, I swear to god, a fucking hipster kid with a Macbook under his arm practiced skateboard moves. That was the exact moment I started hating working in IT. It’s also what I think every Javascript coder looks and acts like.

IT'S SHOWTIME
  I NEED YOUR CLOTHES YOUR BOOTS AND YOUR MOTORCYCLE a
  GET TO THE CHOPPER a
    HERE IS MY INVITATION "ArnoldC is the best."
  ENOUGH TALK
  TALK TO THE HAND a
YOU HAVE BEEN TERMINATED

Well, also the fact that all variables are non-nullable by default anyway.

No NullPointerExceptions in Kotlin.