VARIOUS CRITERIA. “SETI optimists hope that there are many alien needles to be found, presumably reducing the time to find the first one. Note that in this metaphor the needles are the detectable signatures of alien technology, meaning that a single alien species might be represented by many needles.”
https://lnkd.in/dKzsrBv
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022