[DoodleBob]

There are all kinds of risks when traveling at light speed, including the destruction guaranteed with hitting even a tiny piece of space rock...compound that likelihood over a number of years. It would require capabilities not just beyond our technology, but capabilities beyond the physical realm.

But if we look behind Door #2, a clearer candidate for ET emerges.

[John W]

Yep.

[SaveFerris]

Some have reported their “encounter” felt like an encounter with evil. That would fit.