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A comment on Phosphine detected in the atmosphere of Venus – an indicator of possible life?. Parent comment

Re:Phosphine detected in the atmosphere of Venus – an indica... by willis936 on Monday September 14, 2020 @08:20AM (#24469220)
This is about as likely as guessing a 1024 bit encrypted key.

“Match” means “match”. Not “similar structure and behavior”. If it is the same DNA then the only compelling explanation is that it is from the same origin.

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Re:Phosphine detected in the atmosphere of Venus – an indica... by lawlessone on Monday September 14, 2020 @09:27AM (#24469847)
If it's DNA at all then it would be from the same origin?

How likely is it that alien life would also use DNA?

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Re:Phosphine detected in the atmosphere of Venus – an indica... by gmuslera on Monday September 14, 2020 @09:49AM (#24470089)
Even if it is DNA, if it encodes the same proteins in the same way than the life here would a be very improbable event. Think in an alien alphabet looking like ours, but also making the same sounds and some common words and meanings with the similar looking symbols.
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Re:Phosphine detected in the atmosphere of Venus – an indica... by willis936 on Monday September 14, 2020 @10:46AM (#24470765)
“Origin” in this case would be something in the very physically close and near term. Something that excludes the possibility of serious evolutionary change. Even relatively static species undergo mutations in the long term.

So if something is an exact match it is evident that they came from the same time and place (within some reasonable window). The origin would implicitly be Earth in the 1960s.

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Re:Phosphine detected in the atmosphere of Venus – an indica... by castis on Monday September 14, 2020 @08:49PM (#24476792)
I meant match, similarly to saying curtains and carpets match.
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Re:Phosphine detected in the atmosphere of Venus – an indica... by willis936 on Tuesday September 15, 2020 @02:02AM (#24478301)
“Matching DNA” has only one meaning that I am aware of and it is an exact 1:1 sequence. The goal is to identify a living organism from DNA that has fallen off it.

https://en.wikipedia.org/wiki/DNA_profiling

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Re:Phosphine detected in the atmosphere of Venus – an indica... by castis on Tuesday September 15, 2020 @12:55PM (#24483494)
my apologies on not using terminology that suits you
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