Hi Robin,

David Sankel & I came up with withNextE at one point and didn't end up using it.  I like the idea of experimenting with reverse causality.  And yeah, I might want to remove it at some point.  If you think of a use, please let us all know.

  - Conal

On Fri, Nov 21, 2008 at 6:23 AM, Robin Green <greenrd@greenrd.org> wrote:
withNextE seems to allow occurrences' values to depend on occurrences
which haven't yet occurred.

Of course, it doesn't actually allow time travel. If the occurrence is
not yet computed, presumably it will block until it does.

Still, this is problematic theoretically. It allows "simulations"
to be constructed which contain reverse causality (if the simulation
makes all the input occurrences available immediately). Is this a case
of making the framework a little too powerful?

--
Robin
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