/sci/ - Science & Math

My theory is they caught up something in interstellar space.
I mean transit times are about 3 days. If it was orbiting the star, it would be somewhere between 6 to 13 AU from its star. Barring the fact that you just wouldn't build a Tyson sphere there, the amount of matter required to produce a 20% dip in the light of the star at these distances is fucking unbelievably over 9000. We're talking a collection of objects the mass of a star that is dark and doesn't infrared. Where does a civilization find more material than in their parent star to build this?
Also keep in mind the event was not observed a second time. So nothing is telling us what we saw was actually orbiting the star.