[jddj]

If your oracle can tell me (and everyone else) the prevailing price of copper in 6 months in a manner which accounts for the reflexivity of everyone suddenly learning what will be the precise prevailing price of copper in 6 months, you've got yourself a perfect universe simulator and I'm not sure what the point is of worrying about any hypotheticals (or copper) at that point.

[empath75]

If one developed such an oracle, you would surely not share it.