Philosophy Wire by Spiros Kakos [2014-04-16]: It seems that first animals oxygenated our planet, instead of our planet helping first animals to grow due to its oxygen. [1] Pairs of past events, can be interchangeable regarding cause-and-effect. And now that I think better of it, everything is interchangeable regarding cause-and-effect. It is assumptions (like the direction of the arrow of time) that determine the undetermined. Never forget that...
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