Imagine that aliens exist in the coherent state - that is - in a superposition. Perhaps this is the defacto state of much of our universe and the fun little particle interactions around us are something unique to us.
This would also mean that the very act of investing energy into analyzing their home star could change the fundamental nature of how physics worked for them - thousands to millions of years in the past.
The very act of our own existence and perception could outright destroy entire concepts of existence for an alien species. Think something like "Sphere" - but in reverse, where we are so alien to the other forms of life in this universe that our very existence changes the physics around us.