It's a bit tedious to have to type
eps( psbug2, psworld2 ).every time you want to reincarnate the bug. Eden actually remembers which brain and world were last used; if you want to use the same ones again, you don't need to explicitly mention them. So if you are in Prolog, and you want to re-run a bug you've already run, you can use a short form of the command:
eden.
Try this now. You must still have a dot and a RETURN to end the command.
Note: do not confuse this command with the eden command that you
typed to VMS. Although they have the same name, these two commands do
two quite different things, and you are talking to two different
programs when you give them. This is explained further in my handout on
Who am I talking to? - operating systems and the computer. Note
also that you cannot give the eden. command when you start the
first life from Prolog, because Eden won't know which brain and world to
use.