Creationism and carbon 14 dating
Even within our own world, entire scientific disciplines, such as forensic science, are based on discovering the workings of purpose and intelligence.
Clearly then, scientists seem quite confident in their abilities to detect intelligent activity as long as it has nothing to do with the origin of life or the fundamental workings of the universe and it isn't given the label of "God".
Would it then be impossible to detect him simply because he is God and God is defined as undetectable?
Would a God who is actually trying to be recognized as enormously powerful and intelligent actually be harder to identify than an intelligent and powerful "alien" civilization sending radiosignals to our planet?
And yet, the scientific method really does not support the use of any "" assumptions when evaluating the potential truthfulness of any hypothesis or theory.