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198 points isaacfrond | 2 comments | | HN request time: 0.409s | source
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dang ◴[] No.45098897[source]
[stub for offtopicness]
replies(3): >>45098674 #>>45098863 #>>45098875 #
focusgroup0[dead post] ◴[] No.45098863[source]
[flagged]
1. simonh ◴[] No.45098879[source]
They’re not always or necessarily anthropogenic. That doesn’t mean they can’t be anthropogenic.
replies(1): >>45099069 #
2. palmfacehn ◴[] No.45099069[source]
One of the reasons why control groups are so important in science.