User blog comment:KthulhuHimself/The Rho function./@comment-26428969-20151028080855/@comment-27014275-20151028150104

Well, in the old definition, it used C. Loader.c had less than 600 characters, therefore Rho(600) must be able to contain, say, D^99(99), which is larger than loader's number.

The new definition uses python, and python, being a slightly more mathematically rotated, should be able to generate D(n) in 1,000 symbols or less.