All we can do is extrapolate from our human experience, even if we stretch our imaginations to their breaking points.
Yet, some of the scientists who have commented on this have said that what we may encounter is nothing--NOTHING--like anything humans can imagine.
Just a glimpse of what they are may absolutely and permanently disorient us by introducing us to worlds that blind us with how different they are and how different reality actually is (i.e., it is not what we think it is).
We think 3 dimensionally, 4 or 5 at best. These beings may be infinitely beyond that.
As I said above, we cannot imagine anything we have never encountered in life.
But what is coming is possibly not even something comprehensible by our brains.
Whatever is coming...it may obliterate all that we've ever known or imagined just introducing itself into our world.
I am intellectually intrigued, but I think we are in for a surprise.
“But what is coming is possibly not even something comprehensible by our brains”
That is the kind of stuff Terence McKenna used to talk about—for example time just stops or starts working in weird ways that our brains cannot handle or magical creatures just start appearing and then disappearing right in front of us—on a mass scale, not just the one on one stuff that has been so common in human history (and dismissed as “anecdotes” by “experts”).
The arrogance of scientists has always filled me with a sense of foreboding—homo sapiens is always at their most annoying when they are *&^%ing up badly.