The fact that it's built on top of Java makes it hard to believe it's designed to be a 100 year language.

http://www.paulgraham.com/hundred.html

Now now, no need for a slur like "built on top of Java" just because it compiles for the JVM rather than its own VM.

Right, it isn't necessarily built on a core of Java; it's core might be Java bytecode.

Don't confuse a language with its implementation

"Extends the code-as-data paradigm to maps and vectors"

Really? How?