How much evidence will convince you of alien visitation?

This week we wrap up our ALIEN series! Peter Boghossian engaged five people in San Juan, Puerto Rico with the claim, “Aliens are visiting Earth.” Participants explored what type of evidence they require to believe in alien visitation and consider what would convince them otherwise. One man believes mainstream discussion of extra-terrestrial spacecraft is encouraged to distract the public from sinister governmental activities. Participants touch on the possibility that aliens visited Earth long ago, citing ancient petroglyphs as possible evidence.

Watch other alien conversations:

• Michael Shellenberger & Peter Boghossian

• Michael Shermer & Peter Boghossian

• SSE at Speakers’ Corner, London