I like how in the thread, Linus explained the use of using bash and perl as prototyping languages. Git has been a multiple language project for a while. Both

I like how in the thread, Linus explained the use of using bash and perl as prototyping languages. Git has been a multiple language project for a while. Both hg and bzr also use multiple languages. Both use C and python. With the C part used for parts that need speed, and the python for the prototyping and also as an implementation language.