[Moonman62]

The air may only have been . . . . oxygen burst may have come from . . .

Yea, that’s science . . .

...

Actually, it is science. People who speak with 100% certainty are the ones that raise flags.

[ClearCase_guy]

Science is math and measurement and testable theories. Michael Faraday was doing science. Maxwell was doing science. It wasn't just pie-in-the-sky "here's a cool theory" stuff.

600 million years ago, oxygen may have burst forth.

Please describe the testing which is planned in order to verify this guess.

[Olog-hai]

Science is about testing and observation; pure speculation comes from without and is the domain of just about everything else. Saying “based on the evidence” and coming up with wild statements is not using one’s “evidence” as the basis.