While it does sound absurd, it should not be ruled out. Absurdity is a frame of reference and relative to our own knowledge and advancement. So a jumbo jet or even an LCD TV would seem absurd to someone living as recently as 200 years ago. So what could a species that is millions of years ahead of us, do is hard to fathom, let alone put limits on. The funny thing is most scientists on the one hand do accept that the universe must be teeming with life. What they just cannot accept is that it maybe be visiting planet earth. Why not? The standard argument is that the speed of light places limits on how far one can travel, the nearest star being 4 light years, it would take thousands or millions of years to travel the distance (the FTL argument). And yet the very same scientists, advance theories of wormholes, 10-dimemsional space-time, alternate universes that may exist right next to us. All of which may be harnessed by a species millions of years ahead of us to permit them to jump across space-time or even dimensions.
No, your "mind of God" argument just don't work. Intelligence and understanding of intelligible motivation has not changed dramatically. Reading any ancient story, we see all the same motivations, humor etc as today. I don't think Homer or Plato would be unable to understand why we do things today. He may not know how a Mac works but he could guess at why it was built. This is not the case for aliens and EVIDENTALLY POINTLESS visitations. Ok, these crafts contradictory with FTL or 10 dimensional technologies. It doesn't make sense. They travel through 10 dimensions but don't land?? Or maybe you do believe in the MIB universe, where Chinese restaurants are filled with aliens (totally serious)?
