Alicia Keys performs at the 02 Arena in London, July 8

Ha a fekete doboz olyan anyagból van, ami mindent kibír, akkor miért nem csinálják abból az egész repülőt?

"Any effectively generated theory capable of expressing elementary arithmetic cannot be both consistent and complete. In particular, for any consistent, effectively generated formal theory that proves certain basic arithmetic truths, there is an arithmetical statement that is true, but not provable in the theory." - Gödel's first incompleteness theorem