The TeCake
According to the “Zoo Theory”, given by John A. Ball, an MIT radio astronomer, aliens might be living in some distant galaxy, and they know about the existence of humans, but still, they are purposefully hiding from us and avoiding contact with humans
Where Are All the Aliens? Zoo Theory Has Creepy Explanation for Why We Haven’t Made Contact YetYahoo News UK
MIT Radio Astronomer’s Zoo Theory explains why Aliens are reluctant to make human contactNews Nation
Why are aliens not contacting us? Zoo theory explains the mysteryInternational Business Times, Singapore Edition

Source: SIENCE