Predictions are only valuable when they're actually made ahead of the knowledge becoming available. A man will walk on mars by 2030 is falsifiable, a man will walk on mars is not. A lot of these entries have very low to no predictive value or were already known at the time, but just related. Would be nice if future 'judges' put in more work to ensure quality judgments.
I would grade this article B-, but then again, nobody wrote it... ;)