[erlang-questions] Change in garbage collector behavior?

[Per Melin]

2008/5/16 Matthew Dempsky <matthew@REDACTED>:
4> B = F(30), ok.

That's over a billion lists. How much memory do you have?

I can do F(1000) on my machine if I throw away the result, and it
returns immediately. I know that my machine is neither that fast nor
has that much memory. It looks like it's smart enough to never build
the accumulator if it's not used.