What makes Scala cool?


Details
Kevin Hester (https://www.meetup.com/dynamic/members/11709702/) (ex-Google Android @Home) will present our first, and much requested, event on Scala (http://www.scala-lang.org). This is a big deal. Get excited.
What is Scala? "Scala is a general purpose programming language designed to express common programming patterns in a concise, elegant, and type-safe way." Read more (http://www.scala-lang.org) about it.
After telling us a bit about what makes scala cool, he's planning a group lab using Scalatra (http://www.scalatra.org) (Rubyists (http://s3-ec.buzzfed.com/static/enhanced/webdr03/2012/12/19/14/anigif_enhanced-buzz-21059-1355944273-8.gif), see Sinatra (http://www.sinatrarb.com)) to make a little web app.
Scala, widely considered* the last, best hope for humanity**... come find out why.
- by me.
** read: Java programmers.

What makes Scala cool?