None of what you said will prevent the need for waiting for the majority of numerical algorithms.
No one's disputing Erlang's prowess at parallelism. What the critic in this thread was saying was that you can only get Nx speedup on an N core processor for a limited set of algorithms. Most parallel algorithms will not fall in this category. Amdahl's law is a general truth - it doesn't matter what your architecture/language is. There is nothing special about Erlang that will make any parallel algorithm scale linearly with nodes.
No one's disputing Erlang's prowess at parallelism. What the critic in this thread was saying was that you can only get Nx speedup on an N core processor for a limited set of algorithms. Most parallel algorithms will not fall in this category. Amdahl's law is a general truth - it doesn't matter what your architecture/language is. There is nothing special about Erlang that will make any parallel algorithm scale linearly with nodes.