To avoid a “cosmic catastrophe”:
The Harvard physicist who claimed the first interstellar visitor in 2017 was an alien craft, although the object has been determined to be a rock, says Earth needs to form treaties with extraterrestrial civilizations in order to keep the peace in space.
The stark warning comes from Avi Loeb in a new Scientific American op-ed, who believes an advanced civilization could create powerful machines that send particles and energy speeding through space that would burn everything in the galaxy – including our own planet.Stacy Liberatore, “Harvard physicist suggests Earth needs treaties with extraterrestrial civilizations to avoid ‘a cosmic catastrophe’” at Daily Mail (May 25, 2021)
Here’s the op-ed:
In the long term, the need to sign a treaty is only pressing within our galaxy, the Milky Way, and its nearest neighbor, Andromeda; it does not extend beyond the Local Group of galaxies. Even without a treaty signed or honored on extended intergalactic scales, the accelerated expansion of the universe will ultimately save us from the risk of a Planck collider catastrophe. All galaxies beyond “Milkomeda” (the result of an eventual merger between Milky Way and Andromeda, which my colleague T.J. Cox and I named in a 2007 paper) will eventually recede away from us faster than light. As I showed in a 2002 paper, once all other galaxies leave our cosmic event horizon, nothing happening within them could affect us because all causal signals propagate at most at the speed of light. Once the universe ages by another factor of ten, Milkomeda will only be surrounded by dark space.Avi Loeb, “How to Avoid a Cosmic Catastrophe” at Scientific American (May 23, 2021)
How be someone show us a fossil bacterium on Mars first?
This is part of the big new Trust the Science program, right?