How do you feel about the implications of our own achievements regarding our ability to detect and probe exoplanets and potentially life-bearing worlds? It seems like the use of something like spectroscopy to study the atmospheres of rocky exoplanets is not so far off, and so you can just extrapolate about the amazing amount of data we could have about Earth-like worlds over the coming centuries. Wouldn't this highly suggest then, if there ever were advanced civilizations in the galaxy over the last few billion years, that Earth should have been 'catalogued' many times over? And yet we see no obvious evidence that it's been visited, or that beacons have been built to catch our attention or whatever. The pessimist in me thinks this is a pretty clear sign that there probably haven't been any advanced civilizations around during the time that Earth has been a life-bearing world with all the biomarkers in the atmosphere that would signal this fact to the galaxy. What are your thoughts?
Ancalites4 karma
How do you feel about the implications of our own achievements regarding our ability to detect and probe exoplanets and potentially life-bearing worlds? It seems like the use of something like spectroscopy to study the atmospheres of rocky exoplanets is not so far off, and so you can just extrapolate about the amazing amount of data we could have about Earth-like worlds over the coming centuries. Wouldn't this highly suggest then, if there ever were advanced civilizations in the galaxy over the last few billion years, that Earth should have been 'catalogued' many times over? And yet we see no obvious evidence that it's been visited, or that beacons have been built to catch our attention or whatever. The pessimist in me thinks this is a pretty clear sign that there probably haven't been any advanced civilizations around during the time that Earth has been a life-bearing world with all the biomarkers in the atmosphere that would signal this fact to the galaxy. What are your thoughts?
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