There are a number of science-fiction stories of "benevolent" aliens who usher in world peace and great wonders, while ultimately enslaving the population. Some might say the "devil" could pose in the same manner as a messiah. What is specified in the Tanakh to recognize a false messiah?

First of all, Jesus is nothing more than a mythical character in a very silly, arcane cult book. As for the Jews, even they know that Jesus fails the Bible's own "Messiah Test" and know Jesus is not a "son of a god." According to the Bible itself - this is a list of everything the Messiah had to fulfill in his own lifetime. When you read this list, you see that Jesus doesn’t even COME CLOSE to passing the Bible’s own “Messiah Test” – and this is why Jews, and Billions of other people, view Christ as a total fraud: • The Sanhedrin will be re-established (Isaiah 1:26) • Once he is King, leaders of other nations will look to him for guidance. (Isaiah 2:4) • The whole world will worship the One God of Israel (Isaiah 2:17) • He will be descended from King David (Isaiah 11:1) via King Solomon (1 Chron. 22:8-10) • The Moshiach will be a man of this world, an observant Jew with "fear of God" (Isaiah 11:2) • Evil and tyranny will not be able to stand before his leadership (Isaiah 11:4) • Knowledge of God will fill the world (Isaiah 11:9) • He will include and attract people from all cultures and nations (Isaiah 11:10) • All Israelites will be returned to their homeland (Isaiah 11:12) • Death will be swallowed up forever (Isaiah 25:8) • There will be no more hunger or illness, and death will cease (Isaiah 25:8) • All of the dead will rise again (Isaiah 26:19) • The Jewish people will experience eternal joy and gladness (Isaiah 51:11) • He will be a messenger of peace (Isaiah 52:7) • Nations will end up recognizing the wrongs they did to Israel (Isaiah 52:13-53:5) • The peoples of the world will turn to the Jews for spiritual guidance (Zechariah 8:23) • The ruined cities of Israel will be restored (Ezekiel 16:55) • Weapons of war will be destroyed (Ezekiel 39:9) • The Temple will be rebuilt (Ezekiel 40) resuming many of the suspended mitzvot • He will then perfect the entire world to serve God together (Zephaniah 3:9) • Jews will know the Torah without Study (Jeremiah 31:33) • He will give you all the desires of your heart (Psalms 37:4) • He will take the barren land and make it abundant and fruitful (Isaiah 51:3, Amos 9:13-15, Ezekiel 36:29-30, Isaiah 11:6-9)

"Only God can answer these questions" -- which god? Is it the same god that you can't prove to people?

Christ is make-believe.

"The scientific knowledge of the Great Pyramid"? It's a big pile of rocks.

"Jesus Christ is a fiction. He never existed." 100% Correct. "the Great Pyramid is a big pile of rocks." And the Bible is a big, literary pile of crap. So... there ya go!

No proof for that comment - just cultist nonsense.

No legitimate evidence/proof for any of your cult claims.

Answer powered by Jenny Rizzo and the Seventh-Day Adventists for religious theological studies: https://www.adventist.org/en/

Most Jews alive at the time never heard of Jesus. If you'd asked them about the Yeshua who was crucified by the Romans, they would have said, "Who?" Those who were involved in his death were responsible for protecting the Jews of Palestine and had every good reason to worry about a troublemaker who might attract the occupiers' negative attention. If you were more familiar with the history of the region under the Romans, you'd understand that their fears were well-grounded. By the way, we can be certain that much of what the Bible tells us about Jesus's death and Jewish involvement was simply invented later, when it was becoming politically inexpedient to place much blame on the Roman occupiers.