russ_watters
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Further up on the page, I stated that all data has an error margin associated with it. I said such things are "factual in nature" and the associated margin for error is part of the "fact". So when it comes to the expansion of the universe, the statement would look something like this:WW_III_ANGRY said:Either way how can the universe expanding be a fact?
"The data that scientists have points to a 99.9% certainty that the universe is expanding."
That entire statement is one fact. When people talk about these things at parties or on the evening news, they drop the error margins from the statement because it makes the statement less cumbersome and laypeople don't understand it anyway. Do not confuse that to mean scientists have an absolute certainty about the issue.