Doxosophist

One possessing the vain conceit of wisdom that causes the sufferer to think they are wiser than they actually are (doxosophia).

Jim presents a vast array of data confirming a point, involving known mechanisms and multiple correlations across time and geography with degrees of variation where variation is expected

Harry: Correlation doesn't imply causation.

Jim: I hate you, you filthy doxosophist.