[CapnJack]

I would think that if any other star system within 100 LY of us who might have or are observing us would have some type of radio communication on their planet.

That would be something we could detect, and we would know there was someone "out there"

Unless there are those on Earth that were preventing or hiding those Exo-transmissions from us

[fso301]

I would think that if any other star system within 100 LY of us who might have or are observing us would have some type of radio communication on their planet. That would be something we could detect, and we would know there was someone "out there" Unless there are those on Earth that were preventing or hiding those Exo-transmissions from us

Why are these people so self loathing that they always assume we are not the most advanced lifeform of our type in the universe?

[PIF]

who might have or are observing us would have some type of radio communication on their planet.

—
You do realize that the radio spectrum is a tiny part of the electromagnetic spectrum, that radio may not be what most civilizations would use the communicate - See “The Man Who Changed Everything, the Life of James Clerk Maxwell”