Learn English – I need a word which means “not bound by time or space”

I need a single word which means "not bound by time or space"

Words such as "timeless," "eternal," "atemporal," ",forever," or "incorporal" either means "not bound by time" or "not bound by space" but I need a word means both.

Here is what I am writing:

Either way, regardless of how powerful we, humans, become or how technologically advanced we will be, or how much knowledge we will accumulate, the concern which will forever haunt humanity is still the same: how will we, humans, put our power to use? We could even invent the time machine today. We could discover the secret to teleportation today. We could all move to Mars today. We could produce a weapon that is even more destructive than a nuclear bomb today. And none of that would answer how humans ought to put these great tools to use. Here, the more powerful humans become the more we are prone to causing our own destruction. Power is something which none of us should take likely. The question of how we ought to use our power is a crucial question which humanity must answer and must answer correctly. Regardless of how powerful or powerless we are, regardless of what context we might find ourselves in—from talking to our loved ones all the way to making a decision that could affect millions, regardless of whether it would be right at this very moment or ten thousand years from now, there is just not a time nor space which this question isn’t relevant.

The purpose of my research aims to solve and answer this [A WORD WHICH MEANS NOT BOUND BY TIME OR SPACE HERE] question.

PLEASE DO NOT GET INTO A PHILOSOPHICAL DISCUSSION. I JUST WANT SUGGESTION OF POSSIBLE WORDS + EXPLANATION. THANK YOU.