I have this vision of hoards of shadowy numbers lurking out there in the dark, beyond the small sphere of light cast by the candle of reason. They are whispering to each other; plotting who knows what. Perhaps they don't like us very much for capturing their smaller brethren with our minds. Or perhaps they just live uniquely numberish lifestyles, out there beyond our ken.
—Douglas Reay
Googology Wiki is a free online encyclopedia and community dedicated to large numbers.
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Googology is the mathematical study of large numbers, their properties, and their nomenclature. If you're interested in the subject, but you don't know where to start, try reading about some basic functions and ideas:
Short essay on the foundations and history of the field
March 30, 2013: Due to their importance to large number studies, we have decided to introduce articles about Cantor's ordinals! Checkthemout, or better, help us build them!
March 19, 2013: We need your help with a new article, List of googological functions, which indexes various functions and notations using FGH.