OK, let us address the physics of the situation. Our technology could be said to have started in earnest around 1845 with the invention of the telegraph. (Others would prefer to include the earlier works of Oersted, Babbage, Faraday, Korsakov, and Stratingh) So that gives us just 175 years to go from the candle to the cell phone and Mars landers. Suppose another civilization "out there" did not experience a "Fall of Rome", but instead experienced and additional 1800 years of technical growth. That is more that ten times the technological expansion we experienced. It is entirely possible that they would have discovered some physics that we have not yet discovered. Please don't be so arrogant to assume that we already know everything that can be known about physics.
Only if you’re serious. I expect a sarcastic response of course :)
1. How many dimensions does this planet/world you call Earth have?
2. How many do you think there are there in the Universe?
3. You believe the Bible? Good... How old is the Earth?
4. Read Genesis 1:1-3. What do you ascertain from those verses?
5. Why were ancient cultures terrified of Mars?
6. What does Johnathan Swift discover before Asaph Hall and how?
7. How old are the craters on each planet/moon in the solar system?
8. What does Genesis 6 say to you? Look at 6:4 closely.
9. Jesus mentioned the end days would be the same as Noah & Lot. Why?
10. Matthew 4:1-11. How did you think Satan accomplished verse 8 specifically?
Lastly, Jesus warned us over & over again regarding future events to not be deceived.
Matthew 24:4
Mark 13:5
1 John 4:1
Luke 21:8
2 Thessalonians 2:2:9-12 talks about an even greater deception to come over humanity and what happens to those who fall for it.
The source of which is none other than who in Revelation 12:9.
So to answer your questions about what gives me (and everybody else that believes these ufo’s are demons) the notion that these things are evil - and by extension that the Earth is the only populated planet?
The Earth is Satan’s domain and he holds the deed.
Matthew 4:8-9
Luke 4:5-7
Luke 22:53 (his ‘hour’)
John 14:30
John 16:11
John 12:31
1 John 5:19
Ephesians 2:1-2
There has been a fight to death (spiritual) in the Heavens since the day that rebellious angel decided he shall sit on The Lord’s Throne in his mind (Isaiah 14:13).
The war destroyed our solar system and perhaps more in other realms. You really think those craters on Mars, the moon, Venus, Earth, Mercury are all by happen chance?
And if they happened billions of years ago that the debris of those impacts would still be there?
Mankind is a pawn & a prize to Demons, while loved and cherished by the Angelic Godly realm - including the Triune God.
Knowing the spiritual realm and what is at stake, it’s no surprise to me that “Paranormal Activity” is up and UFO’s are showing up more & more.