We tend to think of deception on the scale of Eve being deceived into eathing an apple -- small scale stuff. Yet Satan is literally the Deceiver of the whole world (Rev 12:9).

There are facts out that there we can look at. There are scriptures that guide us.Scripture describes a sun that moves and an earth that is stationary.The deception in the world runs that gamut from "evolution," to the nature of the universe, the identify of God's chosen people and the real identify of Jesus Christ (He is God, the Creator, One with the Father).