Reading Thoth 78

Reading Thoth 78 (問答型思考補助式人工知能 (リーディングトート78) ) is an artificial intelligence that is introduced in Shinyaku Toaru Majutsu no Index that is apparently for the sole purpose of being used by Aleister Crowley.

Etymology
The name is derived from the that was created by Aleister Crowley. The deck is named after the Egyptian deity. The number 78 is the number of all the cards of the Tarot according to, and coincidentally, is also the number that was first attributed to , or Aiwass.

Principles
Little is known about the AI, but it can apparently recognize Aleister Crowley through his, and refers to him as "Aleister-sama". As its name suggests, it apparently not only reports information, but apparently discusses it with the user, giving metaphors to help the user to better understand the topic like a human. Moreover, when there is a different topic that the AI deem necessary, it makes a link to that topic. It also seem to have some calculation and estimating type abilities like a normal computer.

Ichihanaran Festival Arc
The technology appears after some time Fräulein Kreutune has escaped the Windowless Building. Here, it apparently welcomes Aleister Crowley back and begins discussing the existence known as Fräulein Kreutune, who she is, what she is capable of, and what she will do, estimating that Fräulein will acquire properties that allows her to eat and absorb brains, will begin within two hours after its conclusion.