I see, yes Erlang really did revive the concurrency focus. But I also think that the syntax is a major hurdle to widespread adoption. Mochimedia did some cool stuff with Mochiweb in Erlang. Indeed though, you really shouldn't brush over Erlang when talking concurrency as your main feature to decide on. But he is right, syntax will hold it back, where Go doesn't really have that problem as much. We have all experienced the tab push back on Python, dial that up on Erlang.