<tswett> le/rn fundamental theorem of Taneb/The Fundamental Theorem of Taneb states that for all strings S, if S describes a thing, then it is provable that Taneb invented the thing described by S; and, furthermore, that it is provable that there exists a string T that describes a thing that Taneb did not invent.

[[ "$1" == *//* ]] || exit 1; key="${1%%//*}"; value="${1#*//}"; echo "$value" > "$key" && echo "$key"