Even if we never leave our system, it's at least possible that we could build a Dyson Swarm or something similar around our own Sun, which would make it look li

Even if we never leave our system, it's at least possible that we could build a Dyson Swarm or something similar around our own Sun, which would make it look like a strangely -- possibly unnaturally -- occluded star to distant observers. We've spotted one of those already, and we still don't know exactly what we're looking at: https://en.wikipedia.org/wiki/Tabby%27s_Star https://en.wikipedia.org/wiki/Tabby%27s_Star