It is not only tactically unwise but also logically unsound! As Lear said, “Nothing shall come of nothing”…
Is there any evidence that our universe is the sum total of reality?
Burden of proof is usually chosen in the context of the issue to be proven and what in the KNOWN circumstances would be the best approach to catch that elusive thing called “truth”.
Truth itself is not scientifically detectable. It takes us beyond physics to metaphysics…
In sciences experience has shown that its a rather useful approach that either some proof has to be provided for a claim or that a repeatable method for falsification has to exist, the more the claim alters the current scope the more sound proof/methods of falsification should be.
Do you base all your beliefs, values, choices and decisions on scientific evidence? If not why not?
But before criminal courts, one applies different burden of proof and different methods, because the known circumstances are vastly different (namely the nagging problem, that finding evidence of innocence after execution is a bit frustrating); and in civil courts again a different standard is applied.
So to determine where the burden of proof should sensibly fall, one should logically first consider what is known about the respective issue and then derive some guidelines.
The respective issue here is, “what” “exists”/“existed”/“will exist” “outside”, “before” and/or “after” “this” “universe”.
For consistency i put every word with an unclear definition and meaning in this context in “” (though i am a bit scpetical about “and/or”; mybe there is a third on the “outside” besides “and” and “or”).
Is there empirical evidence that the universe is eternal or emerged from nothing? Why should it be an exception to the principle of causality?
And its immidieately obvious, that we might even fail to find words to formulate the issue at hand; if we already fail at that, there is even no need to consider, that we actually know exactly zero about the respective issue (because we have no way to reliably identify anything “outside” “this” “universe”), to conclude that we cannot in any sensible way decide the burden of proof question. And while the argument might be raised, that at least parts of religion considering events inside our universe are not hindered by this problem, that is a logical error.
Ignorance is not a sound basis for any conclusions, let alone the hypothesis that nothing exists but the physical universe!
Because all our scientific knowledge about this universe rests on the assumption, that it is a closed system without interaction with the “outside”; but as soon as invisible pink flying unicorns beam into and “out” of “this” “universe”, its no longer a closed system and all our knowledge is naught at least to issues related to that unicorns and their interactions with this universe. Hence, we can neither apply our for the assumption of a closed universe very useful usual burden of proof (as we could for example, if someone claimed that in this unisverse in accord with the laws of this universe invisible pink flaying unicorns exist; for that issue burden of proof falls with the one claiming such thing, cause from science we know that the laws of this universe make the existance of inivisible pink flying unicorns at least rather unusual and unexpectable) nor can we decide which to apply instead.
It doesn’t follow from the theory that this is a closed universe that it is unique or independent of any other form of reality. Pascal made the point that we are superior to the universe because we are aware it exists whereas there is no evidence the universe knows we exist. That fact alone suggests that physics is an incomplete explanation of reality.
And that already follows directly from natural laws, namely energy conservation is only fulfilled in a closed system; with my beaming-capable unicorns there is no conservation of energy in nature, at least whereever these unicorns supposedly pop up; and that is a very fundamental problem, because energy conservation is mathematically connected to time symmetry meaning if those invisible pink unicorns supposedly pop into our universe we might be forced to wave goodbye to causalty, at least in the current understanding and at least where one of those buggers supposedly is around.
Hence, it is not meaningful to discuss burden of proof in respect to a search for truth in the context of “outside” “things” like such “outside” unicorns or God.
(Although of course it might be fun, meaningful and reasonable in this context for other reasons, for example to understand why believers/atheists consider their respective position reasonable, as mental exercise, etc.) I can not think of any actually logically sound position regarding burden of proof about issues pertaining to things “outside” and/or “before” and/or “after” our universe.
If physical energy is the sole form of energy all our thoughts and conclusions are determined by events over which we have no control. In other words materialism is self-destructive. The demise of logical positivism was due to the realisation that the verification
principle cannot be verified by sense data…