2 ms·
Fermi did not think that aliens would get past the speed of light, but what we have found out in the last 40 years does make his paradox less striking. If Fermi
by sgt101 5y ago
Fermi did not think that aliens would get past the speed of light, but what we have found out in the last 40 years does make his paradox less striking. If Fermi was alive today I expect he would not have wondered "where's everyone?" Instead I think that he would be saying that there's a range of reasons why intelligent life is vanishingly rare. The dynamics of most solar systems (big planets migrate in) and the role of Jupiter as a comet catcher as well as the insights into the history of life and the miracle of the eucaryotic cell.
- sillysaurusx 5y ago> the role of Jupiter as a comet catcher Do you happen to have any info on this? Attempting to answer my own question, I found https://earthsky.org/space/is-it-true-that-jupiter-protects-earth/ https://earthsky.org/space/is-it-true-that-jupiter-protects-... and also https://bigthink.com/hard-science/how-jupiter-protects-earth/ https://bigthink.com/hard-science/how-jupiter-protects-earth... but I was curious if you knew of better sources to read up on it.
- bwi4 5y agohttps://en.wikipedia.org/wiki/Grand_tack_hypothesis https://en.wikipedia.org/wiki/Grand_tack_hypothesis
- zh3 5y agoI recall waiting for Shoemaker-Levy 9 [0] back in 1992; it was not expected to go off with such a bang, when it did it put the spotlight on Jupiter's protective effect. [0] https://en.wikipedia.org/wiki/Comet_Shoemaker%E2%80%93Levy_9 https://en.wikipedia.org/wiki/Comet_Shoemaker%E2%80%93Levy_9