“The traditional view of the world as a cake of fixed size assumes that there are only two types of resources on earth: raw materials and energy.
In reality, however, there are three types: raw materials, energy, and knowledge.
Raw materials and energy are finite – the more you consume, the less you have.
Knowledge, on the other hand, is a growing resource – the more you use it, the more you have.”
– Yuval Noah Harari in “Homo Deus – A History of Tomorrow”, C.H. Beck Publishing