There was a nice article in Ars Technica[0] about the number of civilizations on other planets that could have detected our human civilization, it was depressin

There was a nice article in Ars Technica[0] about the number of civilizations on other planets that could have detected our human civilization, it was depressingly low. [0] https://arstechnica.com/science/2021/06/who-could-know-were-here-on-earth/ https://arstechnica.com/science/2021/06/who-could-know-were-...