You either believe Einstein or you believe in UFOs. You really can’t believe in both. No biological or mechanical entity could actually travel the unfathomable distance of even one much less 100 light years. Radio signals and the use of earth’s atmosphere as a video game screen just might be possible. Earth has been transmitting in analog for about 120 years and in digital for about fifty. Something forty to sixty light years away just might be answering.
“You either believe Einstein or you believe in UFOs.”
There is a third option.
One of the most brilliant scientists on this planet explains it here:
https://thejournalofcosmology.com/Puthoff.pdf
The writer of this article has worked on government secret projects, including the study of UFOs, for decades.