[dgreensp]

After reading the thesis, the proposed model of computing is like a concurrent Smalltalk where everything is completely mutable, even an object's code and prototype chain. The author then writes a function to calculate the Fibonacci sequence by turning it into a distributed system, with some effort, and then runs the code and talks about its performance!

At first glance, there seems to be a lot of incidental complexity and creative choice in expressing a function from integer to integer in this system, which goes against the ideas of code reuse and separating meaning from optimization -- i.e. that there is one global Fibonacci function that we can inspect and understand and don't have to rewrite for performance, or in another language, or to run in a distributed fashion.