The Fermi Paradox asked why, if life was normal, we had no Contact with aliens.  Some speculated that we did have Contact, but that the information was being suppressed.  Reports of flying saucers and alien abductions were common in the twentieth and twenty-first centuries for example, but the major Earth governments constantly ignored them or investigated and found them untrue.  Was this suppression?  Some believe that Contact in 2205 is simply when they went public.